313020649 has 8 divisors (see below), whose sum is σ = 332894240. Its totient is φ = 293486976.

The previous prime is 313020637. The next prime is 313020679. The reversal of 313020649 is 946020313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 313020649 - 2⁹ = 313020137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313020679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83079 + ... + 86764.

It is an arithmetic number, because the mean of its divisors is an integer number (41611780).

Almost surely, 2^313020649 is an apocalyptic number.

It is an amenable number.

313020649 is a deficient number, since it is larger than the sum of its proper divisors (19873591).

313020649 is a wasteful number, since it uses less digits than its factorization.

313020649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169959.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 313020649 is about 17692.3895785730. The cubic root of 313020649 is about 678.9810640627.

The spelling of 313020649 in words is "three hundred thirteen million, twenty thousand, six hundred forty-nine".