155939002 has 8 divisors (see below), whose sum is σ = 234321300. Its totient is φ = 77831904.

The previous prime is 155938963. The next prime is 155939009. The reversal of 155939002 is 200939551.

It is a happy number.

155939002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 115756081 + 40182921 = 10759^2 + 6339^2 .

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

It is not an unprimeable number, because it can be changed into a prime (155939009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67377 + ... + 69652.

Almost surely, 2^155939002 is an apocalyptic number.

155939002 is a deficient number, since it is larger than the sum of its proper divisors (78382298).

155939002 is a wasteful number, since it uses less digits than its factorization.

155939002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137600.

The product of its (nonzero) digits is 12150, while the sum is 34.

The square root of 155939002 is about 12487.5538837676. The cubic root of 155939002 is about 538.2510885569.

The spelling of 155939002 in words is "one hundred fifty-five million, nine hundred thirty-nine thousand, two".