1313957235 has 32 divisors (see below), whose sum is σ = 2154417408. Its totient is φ = 683464320.

The previous prime is 1313957219. The next prime is 1313957261. The reversal of 1313957235 is 5327593131.

It is not a de Polignac number, because 1313957235 - 2⁴ = 1313957219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1313957193 and 1313957202.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 652380 + ... + 654390.

It is an arithmetic number, because the mean of its divisors is an integer number (67325544).

Almost surely, 2^1313957235 is an apocalyptic number.

1313957235 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1313957235 is a deficient number, since it is larger than the sum of its proper divisors (840460173).

1313957235 is a wasteful number, since it uses less digits than its factorization.

1313957235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3075.

The product of its digits is 85050, while the sum is 39.

The square root of 1313957235 is about 36248.5480398871. The cubic root of 1313957235 is about 1095.2848407250.

The spelling of 1313957235 in words is "one billion, three hundred thirteen million, nine hundred fifty-seven thousand, two hundred thirty-five".