311374197 has 12 divisors (see below), whose sum is σ = 450807084. Its totient is φ = 207100800.

The previous prime is 311374187. The next prime is 311374229. The reversal of 311374197 is 791473113.

It can be written as a sum of positive squares in 2 ways, for example, as 65950641 + 245423556 = 8121^2 + 15666^2 .

It is not a de Polignac number, because 311374197 - 2⁴ = 311374181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311374157) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36054 + ... + 43847.

It is an arithmetic number, because the mean of its divisors is an integer number (37567257).

Almost surely, 2^311374197 is an apocalyptic number.

It is an amenable number.

311374197 is a deficient number, since it is larger than the sum of its proper divisors (139432887).

311374197 is a wasteful number, since it uses less digits than its factorization.

311374197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80340 (or 80337 counting only the distinct ones).

The product of its digits is 15876, while the sum is 36.

The square root of 311374197 is about 17645.7982817440. The cubic root of 311374197 is about 677.7885170673.

The spelling of 311374197 in words is "three hundred eleven million, three hundred seventy-four thousand, one hundred ninety-seven".