138275524 has 6 divisors (see below), whose sum is σ = 241982174. Its totient is φ = 69137760.

The previous prime is 138275507. The next prime is 138275539. The reversal of 138275524 is 425572831.

138275524 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 87609600 + 50665924 = 9360^2 + 7118^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17284437 + ... + 17284444.

Almost surely, 2^138275524 is an apocalyptic number.

It is an amenable number.

138275524 is a deficient number, since it is larger than the sum of its proper divisors (103706650).

138275524 is a wasteful number, since it uses less digits than its factorization.

138275524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34568885 (or 34568883 counting only the distinct ones).

The product of its digits is 67200, while the sum is 37.

The square root of 138275524 is about 11759.0613570982. The cubic root of 138275524 is about 517.1086124034.

The spelling of 138275524 in words is "one hundred thirty-eight million, two hundred seventy-five thousand, five hundred twenty-four".