139042002 has 32 divisors (see below), whose sum is σ = 309096000. Its totient is φ = 41337920.

The previous prime is 139041977. The next prime is 139042039. The reversal of 139042002 is 200240931.

It is a self number, because there is not a number n which added to its sum of digits gives 139042002.

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, 16377 + ... + 23372.

It is an arithmetic number, because the mean of its divisors is an integer number (9659250).

Almost surely, 2^139042002 is an apocalyptic number.

139042002 is an abundant number, since it is smaller than the sum of its proper divisors (170053998).

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

139042002 is a wasteful number, since it uses less digits than its factorization.

139042002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39818.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 139042002 is about 11791.6072695795. The cubic root of 139042002 is about 518.0623176518.

Adding to 139042002 its reverse (200240931), we get a palindrome (339282933).

The spelling of 139042002 in words is "one hundred thirty-nine million, forty-two thousand, two".