138499095 has 32 divisors (see below), whose sum is σ = 255214080. Its totient is φ = 62824320.

The previous prime is 138499093. The next prime is 138499111. The reversal of 138499095 is 590994831.

It is not a de Polignac number, because 138499095 - 2¹ = 138499093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138499093) 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, 8721 + ... + 18789.

It is an arithmetic number, because the mean of its divisors is an integer number (7975440).

Almost surely, 2^138499095 is an apocalyptic number.

138499095 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

138499095 is a deficient number, since it is larger than the sum of its proper divisors (116714985).

138499095 is a wasteful number, since it uses less digits than its factorization.

138499095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10215.

The product of its (nonzero) digits is 349920, while the sum is 48.

The square root of 138499095 is about 11768.5638461114. The cubic root of 138499095 is about 517.3871582946.

The spelling of 138499095 in words is "one hundred thirty-eight million, four hundred ninety-nine thousand, ninety-five".