138088 has 16 divisors (see below), whose sum is σ = 265860. Its totient is φ = 67200.

The previous prime is 138079. The next prime is 138101. The reversal of 138088 is 880831.

It can be written as a sum of positive squares in 2 ways, for example, as 88804 + 49284 = 298^2 + 222^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118 + ... + 538.

2¹³⁸⁰⁸⁸ is an apocalyptic number.

It is an amenable number.

138088 is a deficient number, since it is larger than the sum of its proper divisors (127772).

138088 is a wasteful number, since it uses less digits than its factorization.

138088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468 (or 464 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 138088 is about 371.6019375622. The cubic root of 138088 is about 51.6874745648.

The spelling of 138088 in words is "one hundred thirty-eight thousand, eighty-eight".