138100075 has 12 divisors (see below), whose sum is σ = 180257560. Its totient is φ = 104664960.

The previous prime is 138100019. The next prime is 138100097. The reversal of 138100075 is 570001831.

It is not a de Polignac number, because 138100075 - 2¹³ = 138091883 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 144894 + ... + 145843.

Almost surely, 2^138100075 is an apocalyptic number.

138100075 is a deficient number, since it is larger than the sum of its proper divisors (42157485).

138100075 is a wasteful number, since it uses less digits than its factorization.

138100075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290766 (or 290761 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 138100075 is about 11751.5988273937. The cubic root of 138100075 is about 516.8898111155.

The spelling of 138100075 in words is "one hundred thirty-eight million, one hundred thousand, seventy-five".