316122146 has 4 divisors (see below), whose sum is σ = 474183222. Its totient is φ = 158061072.

The previous prime is 316122119. The next prime is 316122161. The reversal of 316122146 is 641221613.

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

It can be written as a sum of positive squares in only one way, i.e., 175960225 + 140161921 = 13265^2 + 11839^2 .

It is a super-2 number, since 2×316122146² = 199866422383290632, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79030535 + ... + 79030538.

Almost surely, 2^316122146 is an apocalyptic number.

316122146 is a deficient number, since it is larger than the sum of its proper divisors (158061076).

316122146 is a wasteful number, since it uses less digits than its factorization.

316122146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158061075.

The product of its digits is 1728, while the sum is 26.

The square root of 316122146 is about 17779.8241273641. The cubic root of 316122146 is about 681.2162101356.

Adding to 316122146 its reverse (641221613), we get a palindrome (957343759).

The spelling of 316122146 in words is "three hundred sixteen million, one hundred twenty-two thousand, one hundred forty-six".