159002138 has 4 divisors (see below), whose sum is σ = 238503210. Its totient is φ = 79501068.

The previous prime is 159002119. The next prime is 159002147. The reversal of 159002138 is 831200951.

159002138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 116920969 + 42081169 = 10813^2 + 6487^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 159002138.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39750533 + ... + 39750536.

Almost surely, 2^159002138 is an apocalyptic number.

159002138 is a deficient number, since it is larger than the sum of its proper divisors (79501072).

159002138 is an equidigital number, since it uses as much as digits as its factorization.

159002138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79501071.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 159002138 is about 12609.6049898480. The cubic root of 159002138 is about 541.7525797087.

The spelling of 159002138 in words is "one hundred fifty-nine million, two thousand, one hundred thirty-eight".