138232982 has 8 divisors (see below), whose sum is σ = 207422976. Its totient is φ = 69091992.

The previous prime is 138232981. The next prime is 138233009. The reversal of 138232982 is 289232831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×138232982² = 38216714625224648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138232981) 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, 4118 + ... + 17129.

It is an arithmetic number, because the mean of its divisors is an integer number (25927872).

Almost surely, 2^138232982 is an apocalyptic number.

138232982 is a deficient number, since it is larger than the sum of its proper divisors (69189994).

138232982 is a wasteful number, since it uses less digits than its factorization.

138232982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24502.

The product of its digits is 41472, while the sum is 38.

The square root of 138232982 is about 11757.2523150607. The cubic root of 138232982 is about 517.0555755622.

The spelling of 138232982 in words is "one hundred thirty-eight million, two hundred thirty-two thousand, nine hundred eighty-two".