138892134 has 16 divisors (see below), whose sum is σ = 277961472. Its totient is φ = 46267848.

The previous prime is 138892123. The next prime is 138892151. The reversal of 138892134 is 431298831.

It is a junction number, because it is equal to n+sod(n) for n = 138892092 and 138892101.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 4207 + ... + 17189.

It is an arithmetic number, because the mean of its divisors is an integer number (17372592).

Almost surely, 2^138892134 is an apocalyptic number.

138892134 is an abundant number, since it is smaller than the sum of its proper divisors (139069338).

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

138892134 is a wasteful number, since it uses less digits than its factorization.

138892134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14771.

The product of its digits is 41472, while the sum is 39.

The square root of 138892134 is about 11785.2506973759. The cubic root of 138892134 is about 517.8761176201.

The spelling of 138892134 in words is "one hundred thirty-eight million, eight hundred ninety-two thousand, one hundred thirty-four".