138527194 has 16 divisors (see below), whose sum is σ = 224071848. Its totient is φ = 63850752.

The previous prime is 138527173. The next prime is 138527201. The reversal of 138527194 is 491725831.

It can be written as a sum of positive squares in 4 ways, for example, as 132549169 + 5978025 = 11513^2 + 2445^2 .

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 7 ways as a sum of consecutive naturals, for example, 19174 + ... + 25390.

Almost surely, 2^138527194 is an apocalyptic number.

138527194 is a deficient number, since it is larger than the sum of its proper divisors (85544654).

138527194 is a wasteful number, since it uses less digits than its factorization.

138527194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7089.

The product of its digits is 60480, while the sum is 40.

The square root of 138527194 is about 11769.7576015821. The cubic root of 138527194 is about 517.4221454755.

The spelling of 138527194 in words is "one hundred thirty-eight million, five hundred twenty-seven thousand, one hundred ninety-four".