313124140 has 48 divisors (see below), whose sum is σ = 760580352. Its totient is φ = 106059456.

The previous prime is 313124137. The next prime is 313124143. The reversal of 313124140 is 41421313.

It is an interprime number because it is at equal distance from previous prime (313124137) and next prime (313124143).

It is not an unprimeable number, because it can be changed into a prime (313124143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1854 + ... + 25093.

It is an arithmetic number, because the mean of its divisors is an integer number (15845424).

Almost surely, 2^313124140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 313124140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (380290176).

313124140 is an abundant number, since it is smaller than the sum of its proper divisors (447456212).

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

313124140 is a wasteful number, since it uses less digits than its factorization.

313124140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27046 (or 27044 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 313124140 is about 17695.3140689845. The cubic root of 313124140 is about 679.0558841392.

Adding to 313124140 its reverse (41421313), we get a palindrome (354545453).

The spelling of 313124140 in words is "three hundred thirteen million, one hundred twenty-four thousand, one hundred forty".