313012566 has 64 divisors (see below), whose sum is σ = 742832640. Its totient is φ = 97463520.

The previous prime is 313012561. The next prime is 313012577. The reversal of 313012566 is 665210313.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313012561) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50476 + ... + 56336.

It is an arithmetic number, because the mean of its divisors is an integer number (11606760).

Almost surely, 2^313012566 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 313012566, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (371416320).

313012566 is an abundant number, since it is smaller than the sum of its proper divisors (429820074).

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

313012566 is a wasteful number, since it uses less digits than its factorization.

313012566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5938 (or 5932 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 313012566 is about 17692.1611455469. The cubic root of 313012566 is about 678.9752196653.

Adding to 313012566 its reverse (665210313), we get a palindrome (978222879).

The spelling of 313012566 in words is "three hundred thirteen million, twelve thousand, five hundred sixty-six".