138151089 has 12 divisors (see below), whose sum is σ = 206942736. Its totient is φ = 92100564.

The previous prime is 138151063. The next prime is 138151103. The reversal of 138151089 is 980151831.

138151089 is a `hidden beast` number, since 138 + 1 + 510 + 8 + 9 = 666.

It is not a de Polignac number, because 138151089 - 2⁸ = 138150833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138151049) 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, 284019 + ... + 284504.

It is an arithmetic number, because the mean of its divisors is an integer number (17245228).

Almost surely, 2^138151089 is an apocalyptic number.

It is an amenable number.

138151089 is a deficient number, since it is larger than the sum of its proper divisors (68791647).

138151089 is an frugal number, since it uses more digits than its factorization.

138151089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568538 (or 568526 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 36.

The square root of 138151089 is about 11753.7691401524. The cubic root of 138151089 is about 516.9534494363.

The spelling of 138151089 in words is "one hundred thirty-eight million, one hundred fifty-one thousand, eighty-nine".