16397137 has 8 divisors (see below), whose sum is σ = 17152704. Its totient is φ = 15645168.

The previous prime is 16397123. The next prime is 16397141. The reversal of 16397137 is 73179361.

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

It is a cyclic number.

It is not a de Polignac number, because 16397137 - 2⁷ = 16397009 is a prime.

It is a super-2 number, since 2×16397137² = 537732203593538, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16397096 and 16397105.

It is not an unprimeable number, because it can be changed into a prime (16397107) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 13518 + ... + 14680.

It is an arithmetic number, because the mean of its divisors is an integer number (2144088).

Almost surely, 2^16397137 is an apocalyptic number.

It is an amenable number.

16397137 is a deficient number, since it is larger than the sum of its proper divisors (755567).

16397137 is a wasteful number, since it uses less digits than its factorization.

16397137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1799.

The product of its digits is 23814, while the sum is 37.

The square root of 16397137 is about 4049.3378471054. The cubic root of 16397137 is about 254.0520332774.

The spelling of 16397137 in words is "sixteen million, three hundred ninety-seven thousand, one hundred thirty-seven".