138290575 has 6 divisors (see below), whose sum is σ = 171480344. Its totient is φ = 110632440.

The previous prime is 138290573. The next prime is 138290587. The reversal of 138290575 is 575092831.

138290575 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 138290575 - 2¹ = 138290573 is a prime.

It is a super-3 number, since 3×138290575³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138290573) 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, 2765787 + ... + 2765836.

Almost surely, 2^138290575 is an apocalyptic number.

138290575 is a deficient number, since it is larger than the sum of its proper divisors (33189769).

138290575 is an equidigital number, since it uses as much as digits as its factorization.

138290575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5531633 (or 5531628 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 40.

The square root of 138290575 is about 11759.7013142341. The cubic root of 138290575 is about 517.1273737844.

The spelling of 138290575 in words is "one hundred thirty-eight million, two hundred ninety thousand, five hundred seventy-five".