138361351 has 12 divisors (see below), whose sum is σ = 147740680. Its totient is φ = 129548160.

The previous prime is 138361343. The next prime is 138361357. The reversal of 138361351 is 153163831.

138361351 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 138361351 - 2³ = 138361343 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138361357) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59845 + ... + 62113.

Almost surely, 2^138361351 is an apocalyptic number.

138361351 is a deficient number, since it is larger than the sum of its proper divisors (9379329).

138361351 is a wasteful number, since it uses less digits than its factorization.

138361351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2514 (or 2497 counting only the distinct ones).

The product of its digits is 6480, while the sum is 31.

The square root of 138361351 is about 11762.7101894079. The cubic root of 138361351 is about 517.2155792770.

The spelling of 138361351 in words is "one hundred thirty-eight million, three hundred sixty-one thousand, three hundred fifty-one".