16313137 has 4 divisors (see below), whose sum is σ = 16364916. Its totient is φ = 16261360.

The previous prime is 16313131. The next prime is 16313147. The reversal of 16313137 is 73131361.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3381921 + 12931216 = 1839^2 + 3596^2 .

It is a cyclic number.

It is not a de Polignac number, because 16313137 - 2¹¹ = 16311089 is a prime.

It is a super-2 number, since 2×16313137² = 532236877561538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16313131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25414 + ... + 26047.

It is an arithmetic number, because the mean of its divisors is an integer number (4091229).

Almost surely, 2^16313137 is an apocalyptic number.

It is an amenable number.

16313137 is a deficient number, since it is larger than the sum of its proper divisors (51779).

16313137 is an equidigital number, since it uses as much as digits as its factorization.

16313137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51778.

The product of its digits is 1134, while the sum is 25.

The square root of 16313137 is about 4038.9524632013. The cubic root of 16313137 is about 253.6174672511.

Adding to 16313137 its reverse (73131361), we get a palindrome (89444498).

The spelling of 16313137 in words is "sixteen million, three hundred thirteen thousand, one hundred thirty-seven".