139015002 has 32 divisors (see below), whose sum is σ = 324513792. Its totient is φ = 38872944.

The previous prime is 139014991. The next prime is 139015043. The reversal of 139015002 is 200510931.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 139015002.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33238 + ... + 37185.

It is an arithmetic number, because the mean of its divisors is an integer number (10141056).

Almost surely, 2^139015002 is an apocalyptic number.

139015002 is an abundant number, since it is smaller than the sum of its proper divisors (185498790).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139015002 is a wasteful number, since it uses less digits than its factorization.

139015002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70482.

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 139015002 is about 11790.4623319020. The cubic root of 139015002 is about 518.0287820106.

Adding to 139015002 its reverse (200510931), we get a palindrome (339525933).

The spelling of 139015002 in words is "one hundred thirty-nine million, fifteen thousand, two".