138025075 has 6 divisors (see below), whose sum is σ = 171151124. Its totient is φ = 110420040.

The previous prime is 138025073. The next prime is 138025079. The reversal of 138025075 is 570520831.

It is not a de Polignac number, because 138025075 - 2¹ = 138025073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138025073) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2760477 + ... + 2760526.

Almost surely, 2^138025075 is an apocalyptic number.

138025075 is a deficient number, since it is larger than the sum of its proper divisors (33126049).

138025075 is an equidigital number, since it uses as much as digits as its factorization.

138025075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5521013 (or 5521008 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 138025075 is about 11748.4073388694. The cubic root of 138025075 is about 516.7962225691.

The spelling of 138025075 in words is "one hundred thirty-eight million, twenty-five thousand, seventy-five".