138164613 has 16 divisors (see below), whose sum is σ = 196723200. Its totient is φ = 86063040.

The previous prime is 138164603. The next prime is 138164659. The reversal of 138164613 is 316461831.

It is not a de Polignac number, because 138164613 - 2⁴ = 138164597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138164603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22918 + ... + 28311.

It is an arithmetic number, because the mean of its divisors is an integer number (12295200).

Almost surely, 2^138164613 is an apocalyptic number.

It is an amenable number.

138164613 is a deficient number, since it is larger than the sum of its proper divisors (58558587).

138164613 is a wasteful number, since it uses less digits than its factorization.

138164613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51292.

The product of its digits is 10368, while the sum is 33.

The square root of 138164613 is about 11754.3444308902. The cubic root of 138164613 is about 516.9703175633.

The spelling of 138164613 in words is "one hundred thirty-eight million, one hundred sixty-four thousand, six hundred thirteen".