313551897 has 8 divisors (see below), whose sum is σ = 419254944. Its totient is φ = 208441728.

The previous prime is 313551881. The next prime is 313551923. The reversal of 313551897 is 798155313.

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

It is not a de Polignac number, because 313551897 - 2⁴ = 313551881 is a prime.

It is a super-2 number, since 2×313551897² = 196629584224597218, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (313551827) 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, 146983 + ... + 149100.

It is an arithmetic number, because the mean of its divisors is an integer number (52406868).

Almost surely, 2^313551897 is an apocalyptic number.

It is an amenable number.

313551897 is a deficient number, since it is larger than the sum of its proper divisors (105703047).

313551897 is a wasteful number, since it uses less digits than its factorization.

313551897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296439.

The product of its digits is 113400, while the sum is 42.

The square root of 313551897 is about 17707.3966748362. The cubic root of 313551897 is about 679.3649614888.

The spelling of 313551897 in words is "three hundred thirteen million, five hundred fifty-one thousand, eight hundred ninety-seven".