138025089 has 12 divisors (see below), whose sum is σ = 199929600. Its totient is φ = 91758264.

The previous prime is 138025079. The next prime is 138025117. The reversal of 138025089 is 980520831.

It is not a de Polignac number, because 138025089 - 2⁴ = 138025073 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (138025009) 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, 18129 + ... + 24590.

It is an arithmetic number, because the mean of its divisors is an integer number (16660800).

Almost surely, 2^138025089 is an apocalyptic number.

It is an amenable number.

138025089 is a deficient number, since it is larger than the sum of its proper divisors (61904511).

138025089 is a wasteful number, since it uses less digits than its factorization.

138025089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43084 (or 43081 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 138025089 is about 11748.4079346948. The cubic root of 138025089 is about 516.7962400421.

The spelling of 138025089 in words is "one hundred thirty-eight million, twenty-five thousand, eighty-nine".