1253605351 has 6 divisors (see below), whose sum is σ = 1323057552. Its totient is φ = 1187625780.

The previous prime is 1253605319. The next prime is 1253605369. The reversal of 1253605351 is 1535063521.

It is not a de Polignac number, because 1253605351 - 2⁵ = 1253605319 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253605151) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1735935 + ... + 1736656.

It is an arithmetic number, because the mean of its divisors is an integer number (220509592).

Almost surely, 2^1253605351 is an apocalyptic number.

1253605351 is a deficient number, since it is larger than the sum of its proper divisors (69452201).

1253605351 is an equidigital number, since it uses as much as digits as its factorization.

1253605351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3472629 (or 3472610 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 31.

The square root of 1253605351 is about 35406.2897095982. The cubic root of 1253605351 is about 1078.2520166600.

Adding to 1253605351 its reverse (1535063521), we get a palindrome (2788668872).

The spelling of 1253605351 in words is "one billion, two hundred fifty-three million, six hundred five thousand, three hundred fifty-one".