139932942 has 16 divisors (see below), whose sum is σ = 280865232. Its totient is φ = 46477760.

The previous prime is 139932941. The next prime is 139932973. The reversal of 139932942 is 249239931.

It is a junction number, because it is equal to n+sod(n) for n = 139932894 and 139932903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139932941) 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, 39813 + ... + 43184.

It is an arithmetic number, because the mean of its divisors is an integer number (17554077).

Almost surely, 2^139932942 is an apocalyptic number.

139932942 is an abundant number, since it is smaller than the sum of its proper divisors (140932290).

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

139932942 is a wasteful number, since it uses less digits than its factorization.

139932942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83283.

The product of its digits is 104976, while the sum is 42.

The square root of 139932942 is about 11829.3255090897. The cubic root of 139932942 is about 519.1664925950.

The spelling of 139932942 in words is "one hundred thirty-nine million, nine hundred thirty-two thousand, nine hundred forty-two".