16313391 has 12 divisors (see below), whose sum is σ = 23605920. Its totient is φ = 10856160.

The previous prime is 16313369. The next prime is 16313393. The reversal of 16313391 is 19331361.

It is not a de Polignac number, because 16313391 - 2¹¹ = 16311343 is a prime.

It is a super-2 number, since 2×16313391² = 532253451837762, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16313393) 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, 5211 + ... + 7731.

It is an arithmetic number, because the mean of its divisors is an integer number (1967160).

Almost surely, 2^16313391 is an apocalyptic number.

16313391 is a deficient number, since it is larger than the sum of its proper divisors (7292529).

16313391 is a wasteful number, since it uses less digits than its factorization.

16313391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3246 (or 3243 counting only the distinct ones).

The product of its digits is 1458, while the sum is 27.

The square root of 16313391 is about 4038.9839068756. The cubic root of 16313391 is about 253.6187835421.

The spelling of 16313391 in words is "sixteen million, three hundred thirteen thousand, three hundred ninety-one".