16138607 has 4 divisors (see below), whose sum is σ = 16162920. Its totient is φ = 16114296.

The previous prime is 16138601. The next prime is 16138609. The reversal of 16138607 is 70683161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70683161 = 17 ⋅4157833.

It is a cyclic number.

It is not a de Polignac number, because 16138607 - 2⁸ = 16138351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16138601) 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, 11132 + ... + 12497.

It is an arithmetic number, because the mean of its divisors is an integer number (4040730).

Almost surely, 2^16138607 is an apocalyptic number.

16138607 is a deficient number, since it is larger than the sum of its proper divisors (24313).

16138607 is an equidigital number, since it uses as much as digits as its factorization.

16138607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24312.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 16138607 is about 4017.2885134130. The cubic root of 16138607 is about 252.7097600174.

The spelling of 16138607 in words is "sixteen million, one hundred thirty-eight thousand, six hundred seven".