138214934 has 32 divisors (see below), whose sum is σ = 247726080. Its totient is φ = 57002400.

The previous prime is 138214891. The next prime is 138214963. The reversal of 138214934 is 439412831.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 138214894 and 138214903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12779 + ... + 20969.

It is an arithmetic number, because the mean of its divisors is an integer number (7741440).

Almost surely, 2^138214934 is an apocalyptic number.

138214934 is a deficient number, since it is larger than the sum of its proper divisors (109511146).

138214934 is a wasteful number, since it uses less digits than its factorization.

138214934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8276.

The product of its digits is 20736, while the sum is 35.

The square root of 138214934 is about 11756.4847637378. The cubic root of 138214934 is about 517.0330719478.

The spelling of 138214934 in words is "one hundred thirty-eight million, two hundred fourteen thousand, nine hundred thirty-four".