138012954 has 32 divisors (see below), whose sum is σ = 283466304. Its totient is φ = 44778240.

The previous prime is 138012937. The next prime is 138012967. The reversal of 138012954 is 459210831.

It is a super-2 number, since 2×138012954² = 38095150943612232, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40002 + ... + 43314.

It is an arithmetic number, because the mean of its divisors is an integer number (8858322).

Almost surely, 2^138012954 is an apocalyptic number.

138012954 is an abundant number, since it is smaller than the sum of its proper divisors (145453350).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138012954 is a wasteful number, since it uses less digits than its factorization.

138012954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3502.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 138012954 is about 11747.8914703874. The cubic root of 138012954 is about 516.7810942301.

The spelling of 138012954 in words is "one hundred thirty-eight million, twelve thousand, nine hundred fifty-four".