138520796 has 12 divisors (see below), whose sum is σ = 248324160. Its totient is φ = 67571040.

The previous prime is 138520783. The next prime is 138520801. The reversal of 138520796 is 697025831.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 422156 + ... + 422483.

It is an arithmetic number, because the mean of its divisors is an integer number (20693680).

Almost surely, 2^138520796 is an apocalyptic number.

It is an amenable number.

138520796 is a deficient number, since it is larger than the sum of its proper divisors (109803364).

138520796 is a wasteful number, since it uses less digits than its factorization.

138520796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844684 (or 844682 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 138520796 is about 11769.4858001529. The cubic root of 138520796 is about 517.4141794876.

The spelling of 138520796 in words is "one hundred thirty-eight million, five hundred twenty thousand, seven hundred ninety-six".