313136140 has 12 divisors (see below), whose sum is σ = 657585936. Its totient is φ = 125254448.

The previous prime is 313136129. The next prime is 313136149. The reversal of 313136140 is 41631313.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (313136149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7828384 + ... + 7828423.

It is an arithmetic number, because the mean of its divisors is an integer number (54798828).

Almost surely, 2^313136140 is an apocalyptic number.

It is an amenable number.

313136140 is an abundant number, since it is smaller than the sum of its proper divisors (344449796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

313136140 is a wasteful number, since it uses less digits than its factorization.

313136140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15656816 (or 15656814 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 313136140 is about 17695.6531385535. The cubic root of 313136140 is about 679.0645586184.

Adding to 313136140 its reverse (41631313), we get a palindrome (354767453).

The spelling of 313136140 in words is "three hundred thirteen million, one hundred thirty-six thousand, one hundred forty".