138602594 has 8 divisors (see below), whose sum is σ = 223896540. Its totient is φ = 63970416.

The previous prime is 138602573. The next prime is 138602627. The reversal of 138602594 is 495206831.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 119793025 + 18809569 = 10945^2 + 4337^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 2665409 + ... + 2665460.

Almost surely, 2^138602594 is an apocalyptic number.

138602594 is a deficient number, since it is larger than the sum of its proper divisors (85293946).

138602594 is a wasteful number, since it uses less digits than its factorization.

138602594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5330884.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 138602594 is about 11772.9602904282. The cubic root of 138602594 is about 517.5160056350.

The spelling of 138602594 in words is "one hundred thirty-eight million, six hundred two thousand, five hundred ninety-four".