138583582 has 16 divisors (see below), whose sum is σ = 216204912. Its totient is φ = 66568320.

The previous prime is 138583561. The next prime is 138583603. The reversal of 138583582 is 285385831.

It is an interprime number because it is at equal distance from previous prime (138583561) and next prime (138583603).

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7963 + ... + 18454.

It is an arithmetic number, because the mean of its divisors is an integer number (13512807).

Almost surely, 2^138583582 is an apocalyptic number.

138583582 is a deficient number, since it is larger than the sum of its proper divisors (77621330).

138583582 is a wasteful number, since it uses less digits than its factorization.

138583582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26523.

The product of its digits is 230400, while the sum is 43.

The square root of 138583582 is about 11772.1528192595. The cubic root of 138583582 is about 517.4923421428.

The spelling of 138583582 in words is "one hundred thirty-eight million, five hundred eighty-three thousand, five hundred eighty-two".