138496522 has 8 divisors (see below), whose sum is σ = 207850500. Its totient is φ = 69213024.

The previous prime is 138496511. The next prime is 138496537. The reversal of 138496522 is 225694831.

It can be written as a sum of positive squares in 2 ways, for example, as 96648561 + 41847961 = 9831^2 + 6469^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12397 + ... + 20752.

Almost surely, 2^138496522 is an apocalyptic number.

138496522 is a deficient number, since it is larger than the sum of its proper divisors (69353978).

138496522 is a wasteful number, since it uses less digits than its factorization.

138496522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35240.

The product of its digits is 103680, while the sum is 40.

The square root of 138496522 is about 11768.4545289515. The cubic root of 138496522 is about 517.3839543136.

The spelling of 138496522 in words is "one hundred thirty-eight million, four hundred ninety-six thousand, five hundred twenty-two".