138315695 has 32 divisors (see below), whose sum is σ = 193729536. Its totient is φ = 92851200.

The previous prime is 138315691. The next prime is 138315719. The reversal of 138315695 is 596513831.

It is not a de Polignac number, because 138315695 - 2² = 138315691 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138315691) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 444590 + ... + 444900.

It is an arithmetic number, because the mean of its divisors is an integer number (6054048).

Almost surely, 2^138315695 is an apocalyptic number.

138315695 is a deficient number, since it is larger than the sum of its proper divisors (55413841).

138315695 is a wasteful number, since it uses less digits than its factorization.

138315695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551.

The product of its digits is 97200, while the sum is 41.

The square root of 138315695 is about 11760.7693200743. The cubic root of 138315695 is about 517.1586833492.

The spelling of 138315695 in words is "one hundred thirty-eight million, three hundred fifteen thousand, six hundred ninety-five".