1401245 has 4 divisors (see below), whose sum is σ = 1681500. Its totient is φ = 1120992.

The previous prime is 1401233. The next prime is 1401247. The reversal of 1401245 is 5421041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5421041 = 311 ⋅17431.

It can be written as a sum of positive squares in 2 ways, for example, as 964324 + 436921 = 982^2 + 661^2 .

It is a cyclic number.

It is not a de Polignac number, because 1401245 - 2⁸ = 1400989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140120 + ... + 140129.

It is an arithmetic number, because the mean of its divisors is an integer number (420375).

2^1401245 is an apocalyptic number.

It is an amenable number.

1401245 is a deficient number, since it is larger than the sum of its proper divisors (280255).

1401245 is an equidigital number, since it uses as much as digits as its factorization.

1401245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280254.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 1401245 is about 1183.7419482303. The cubic root of 1401245 is about 111.9020455196.

Adding to 1401245 its reverse (5421041), we get a palindrome (6822286).

The spelling of 1401245 in words is "one million, four hundred one thousand, two hundred forty-five".