16861137 has 8 divisors (see below), whose sum is σ = 22505280. Its totient is φ = 11228880.

The previous prime is 16861129. The next prime is 16861147. The reversal of 16861137 is 73116861.

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

It is not a de Polignac number, because 16861137 - 2³ = 16861129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16861098 and 16861107.

It is not an unprimeable number, because it can be changed into a prime (16861147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1164 + ... + 5922.

It is an arithmetic number, because the mean of its divisors is an integer number (2813160).

Almost surely, 2^16861137 is an apocalyptic number.

It is an amenable number.

16861137 is a deficient number, since it is larger than the sum of its proper divisors (5644143).

16861137 is a wasteful number, since it uses less digits than its factorization.

16861137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5943.

The product of its digits is 6048, while the sum is 33.

The square root of 16861137 is about 4106.2314839765. The cubic root of 16861137 is about 256.4261345469.

Adding to 16861137 its reverse (73116861), we get a palindrome (89977998).

The spelling of 16861137 in words is "sixteen million, eight hundred sixty-one thousand, one hundred thirty-seven".