138234683 has 4 divisors (see below), whose sum is σ = 138288600. Its totient is φ = 138180768.

The previous prime is 138234659. The next prime is 138234689. The reversal of 138234683 is 386432831.

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 138234683 - 2⁸ = 138234427 is a prime.

It is a super-2 number, since 2×138234683² = 38217655168220978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138234689) 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, 22910 + ... + 28307.

It is an arithmetic number, because the mean of its divisors is an integer number (34572150).

Almost surely, 2^138234683 is an apocalyptic number.

138234683 is a deficient number, since it is larger than the sum of its proper divisors (53917).

138234683 is an equidigital number, since it uses as much as digits as its factorization.

138234683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53916.

The product of its digits is 82944, while the sum is 38.

The square root of 138234683 is about 11757.3246531683. The cubic root of 138234683 is about 517.0576963969.

The spelling of 138234683 in words is "one hundred thirty-eight million, two hundred thirty-four thousand, six hundred eighty-three".