313660651 has 4 divisors (see below), whose sum is σ = 316766304. Its totient is φ = 310555000.

The previous prime is 313660649. The next prime is 313660661. The reversal of 313660651 is 156066313.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 313660651 - 2¹ = 313660649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313660631) 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, 1552675 + ... + 1552876.

It is an arithmetic number, because the mean of its divisors is an integer number (79191576).

Almost surely, 2^313660651 is an apocalyptic number.

313660651 is a deficient number, since it is larger than the sum of its proper divisors (3105653).

313660651 is a wasteful number, since it uses less digits than its factorization.

313660651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3105652.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 313660651 is about 17710.4672722094. The cubic root of 313660651 is about 679.4434972563.

The spelling of 313660651 in words is "three hundred thirteen million, six hundred sixty thousand, six hundred fifty-one".