138884595 has 16 divisors (see below), whose sum is σ = 224417952. Its totient is φ = 73337600.

The previous prime is 138884593. The next prime is 138884597. The reversal of 138884595 is 595488831.

It is an interprime number because it is at equal distance from previous prime (138884593) and next prime (138884597).

It is not a de Polignac number, because 138884595 - 2¹ = 138884593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138884593) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44322 + ... + 47351.

It is an arithmetic number, because the mean of its divisors is an integer number (14026122).

Almost surely, 2^138884595 is an apocalyptic number.

138884595 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

138884595 is a deficient number, since it is larger than the sum of its proper divisors (85533357).

138884595 is a wasteful number, since it uses less digits than its factorization.

138884595 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91782.

The product of its digits is 1382400, while the sum is 51.

The square root of 138884595 is about 11784.9308440907. The cubic root of 138884595 is about 517.8667474262.

The spelling of 138884595 in words is "one hundred thirty-eight million, eight hundred eighty-four thousand, five hundred ninety-five".