1235452201 has 3 divisors (see below), whose sum is σ = 1235487351. Its totient is φ = 1235417052.

The previous prime is 1235452193. The next prime is 1235452217. The reversal of 1235452201 is 1022545321.

The square root of 1235452201 is 35149.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1022545321 = 7 ⋅146077903.

It can be written as a sum of positive squares in only one way, i.e., 967147801 + 268304400 = 31099^2 + 16380^2 .

It is not a de Polignac number, because 1235452201 - 2³ = 1235452193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1235452241) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 17575 + ... + 52723.

It is an arithmetic number, because the mean of its divisors is an integer number (411829117).

Almost surely, 2^1235452201 is an apocalyptic number.

1235452201 is the 35149-th square number.

1235452201 is the 17575-th centered octagonal number.

It is an amenable number.

1235452201 is a deficient number, since it is larger than the sum of its proper divisors (35150).

1235452201 is an frugal number, since it uses more digits than its factorization.

1235452201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70298 (or 35149 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The cubic root of 1235452201 is about 1073.0220563754.

Multiplying 1235452201 by its sum of digits (25), we get a square (30886305025 = 175745²).

Adding to 1235452201 its reverse (1022545321), we get a palindrome (2257997522).

The spelling of 1235452201 in words is "one billion, two hundred thirty-five million, four hundred fifty-two thousand, two hundred one".