138583569 has 8 divisors (see below), whose sum is σ = 185245120. Its totient is φ = 92155536.

The previous prime is 138583561. The next prime is 138583603. The reversal of 138583569 is 965385831.

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

It is not a de Polignac number, because 138583569 - 2³ = 138583561 is a prime.

It is a super-2 number, since 2×138583569² = 38410811193555522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (138583561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56989 + ... + 59370.

It is an arithmetic number, because the mean of its divisors is an integer number (23155640).

Almost surely, 2^138583569 is an apocalyptic number.

It is an amenable number.

138583569 is a deficient number, since it is larger than the sum of its proper divisors (46661551).

138583569 is a wasteful number, since it uses less digits than its factorization.

138583569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116759.

The product of its digits is 777600, while the sum is 48.

The square root of 138583569 is about 11772.1522671090. The cubic root of 138583569 is about 517.4923259615.

The spelling of 138583569 in words is "one hundred thirty-eight million, five hundred eighty-three thousand, five hundred sixty-nine".