138307595 has 4 divisors (see below), whose sum is σ = 165969120. Its totient is φ = 110646072.

The previous prime is 138307541. The next prime is 138307601. The reversal of 138307595 is 595703831.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 138307595 - 2⁶ = 138307531 is a prime.

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, 13830755 + ... + 13830764.

It is an arithmetic number, because the mean of its divisors is an integer number (41492280).

Almost surely, 2^138307595 is an apocalyptic number.

138307595 is a deficient number, since it is larger than the sum of its proper divisors (27661525).

138307595 is an equidigital number, since it uses as much as digits as its factorization.

138307595 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27661524.

The product of its (nonzero) digits is 113400, while the sum is 41.

The square root of 138307595 is about 11760.4249498052. The cubic root of 138307595 is about 517.1485879244.

The spelling of 138307595 in words is "one hundred thirty-eight million, three hundred seven thousand, five hundred ninety-five".