138970183 has 4 divisors (see below), whose sum is σ = 151603848. Its totient is φ = 126336520.

The previous prime is 138970177. The next prime is 138970213. The reversal of 138970183 is 381079831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 138970183 - 2⁵ = 138970151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138970133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6316816 + ... + 6316837.

It is an arithmetic number, because the mean of its divisors is an integer number (37900962).

Almost surely, 2^138970183 is an apocalyptic number.

138970183 is a deficient number, since it is larger than the sum of its proper divisors (12633665).

138970183 is a wasteful number, since it uses less digits than its factorization.

138970183 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12633664.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 138970183 is about 11788.5615322651. The cubic root of 138970183 is about 517.9731045004.

The spelling of 138970183 in words is "one hundred thirty-eight million, nine hundred seventy thousand, one hundred eighty-three".