138524113 has 16 divisors (see below), whose sum is σ = 174461056. Its totient is φ = 107049600.

The previous prime is 138524093. The next prime is 138524123. The reversal of 138524113 is 311425831.

It is a happy number.

It is not a de Polignac number, because 138524113 - 2⁹ = 138523601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138524123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13788 + ... + 21613.

It is an arithmetic number, because the mean of its divisors is an integer number (10903816).

Almost surely, 2^138524113 is an apocalyptic number.

138524113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

138524113 is a deficient number, since it is larger than the sum of its proper divisors (35936943).

138524113 is a wasteful number, since it uses less digits than its factorization.

138524113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35464.

The product of its digits is 2880, while the sum is 28.

The square root of 138524113 is about 11769.6267145564. The cubic root of 138524113 is about 517.4183094310.

Adding to 138524113 its reverse (311425831), we get a palindrome (449949944).

The spelling of 138524113 in words is "one hundred thirty-eight million, five hundred twenty-four thousand, one hundred thirteen".