139882018 has 16 divisors (see below), whose sum is σ = 222480000. Its totient is φ = 65733696.

The previous prime is 139882007. The next prime is 139882019. The reversal of 139882018 is 810288931.

It is not an unprimeable number, because it can be changed into a prime (139882019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25483 + ... + 30481.

It is an arithmetic number, because the mean of its divisors is an integer number (13905000).

Almost surely, 2^139882018 is an apocalyptic number.

139882018 is a deficient number, since it is larger than the sum of its proper divisors (82597982).

139882018 is a wasteful number, since it uses less digits than its factorization.

139882018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5841.

The product of its (nonzero) digits is 27648, while the sum is 40.

The square root of 139882018 is about 11827.1728659050. The cubic root of 139882018 is about 519.1035070873.

The spelling of 139882018 in words is "one hundred thirty-nine million, eight hundred eighty-two thousand, eighteen".