139962980 has 24 divisors (see below), whose sum is σ = 294384888. Its totient is φ = 55897088.

The previous prime is 139962959. The next prime is 139962997. The reversal of 139962980 is 89269931.

It can be written as a sum of positive squares in 4 ways, for example, as 20016676 + 119946304 = 4474^2 + 10952^2 .

It is an unprimeable number.

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, 8372 + ... + 18708.

It is an arithmetic number, because the mean of its divisors is an integer number (12266037).

Almost surely, 2^139962980 is an apocalyptic number.

139962980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139962980 is an abundant number, since it is smaller than the sum of its proper divisors (154421908).

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

139962980 is a wasteful number, since it uses less digits than its factorization.

139962980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11023 (or 11021 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 47.

The square root of 139962980 is about 11830.5950822433. The cubic root of 139962980 is about 519.2036380238.

The spelling of 139962980 in words is "one hundred thirty-nine million, nine hundred sixty-two thousand, nine hundred eighty".