139918372 has 24 divisors (see below), whose sum is σ = 267432480. Its totient is φ = 63524160.

The previous prime is 139918343. The next prime is 139918379. The reversal of 139918372 is 273819931.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (139918379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55483 + ... + 57949.

It is an arithmetic number, because the mean of its divisors is an integer number (11143020).

Almost surely, 2^139918372 is an apocalyptic number.

It is an amenable number.

139918372 is a deficient number, since it is larger than the sum of its proper divisors (127514108).

139918372 is a wasteful number, since it uses less digits than its factorization.

139918372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3771 (or 3769 counting only the distinct ones).

The product of its digits is 81648, while the sum is 43.

The square root of 139918372 is about 11828.7096506762. The cubic root of 139918372 is about 519.1484732060.

The spelling of 139918372 in words is "one hundred thirty-nine million, nine hundred eighteen thousand, three hundred seventy-two".