138183577 has 12 divisors (see below), whose sum is σ = 161683236. Its totient is φ = 117751200.

The previous prime is 138183569. The next prime is 138183583. The reversal of 138183577 is 775381831.

It can be written as a sum of positive squares in 2 ways, for example, as 121242121 + 16941456 = 11011^2 + 4116^2 .

It is not a de Polignac number, because 138183577 - 2³ = 138183569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138183527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 327 + ... + 16627.

It is an arithmetic number, because the mean of its divisors is an integer number (13473603).

Almost surely, 2^138183577 is an apocalyptic number.

It is an amenable number.

138183577 is a deficient number, since it is larger than the sum of its proper divisors (23499659).

138183577 is a wasteful number, since it uses less digits than its factorization.

138183577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16488 (or 16481 counting only the distinct ones).

The product of its digits is 141120, while the sum is 43.

The square root of 138183577 is about 11755.1510836739. The cubic root of 138183577 is about 516.9939690043.

The spelling of 138183577 in words is "one hundred thirty-eight million, one hundred eighty-three thousand, five hundred seventy-seven".