313511252 has 24 divisors (see below), whose sum is σ = 579410496. Its totient is φ = 148130048.

The previous prime is 313511243. The next prime is 313511281. The reversal of 313511252 is 252115313.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12893 + ... + 28164.

It is an arithmetic number, because the mean of its divisors is an integer number (24142104).

Almost surely, 2^313511252 is an apocalyptic number.

It is an amenable number.

313511252 is a deficient number, since it is larger than the sum of its proper divisors (265899244).

313511252 is a wasteful number, since it uses less digits than its factorization.

313511252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41167 (or 41165 counting only the distinct ones).

The product of its digits is 900, while the sum is 23.

The square root of 313511252 is about 17706.2489534063. The cubic root of 313511252 is about 679.3356053893.

Adding to 313511252 its reverse (252115313), we get a palindrome (565626565).

The spelling of 313511252 in words is "three hundred thirteen million, five hundred eleven thousand, two hundred fifty-two".