139943882 has 16 divisors (see below), whose sum is σ = 229771752. Its totient is φ = 63529920.

The previous prime is 139943857. The next prime is 139943897. The reversal of 139943882 is 288349931.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 49294441 + 90649441 = 7021^2 + 9521^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42533 + ... + 45704.

Almost surely, 2^139943882 is an apocalyptic number.

139943882 is a deficient number, since it is larger than the sum of its proper divisors (89827870).

139943882 is a wasteful number, since it uses less digits than its factorization.

139943882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88313.

The product of its digits is 373248, while the sum is 47.

The square root of 139943882 is about 11829.7879101867. The cubic root of 139943882 is about 519.1800217740.

The spelling of 139943882 in words is "one hundred thirty-nine million, nine hundred forty-three thousand, eight hundred eighty-two".