138506846 has 16 divisors (see below), whose sum is σ = 219542400. Its totient is φ = 65354328.

The previous prime is 138506843. The next prime is 138506857. The reversal of 138506846 is 648605831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138506843) 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, 3065 + ... + 16923.

It is an arithmetic number, because the mean of its divisors is an integer number (13721400).

Almost surely, 2^138506846 is an apocalyptic number.

138506846 is a deficient number, since it is larger than the sum of its proper divisors (81035554).

138506846 is a wasteful number, since it uses less digits than its factorization.

138506846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14143.

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 138506846 is about 11768.8931510147. The cubic root of 138506846 is about 517.3968098451.

The spelling of 138506846 in words is "one hundred thirty-eight million, five hundred six thousand, eight hundred forty-six".