139980907 has 18 divisors (see below), whose sum is σ = 163487324. Its totient is φ = 119739840.

The previous prime is 139980901. The next prime is 139980917. The reversal of 139980907 is 709089931.

It is not a de Polignac number, because 139980907 - 2¹¹ = 139978859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (139980901) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 32968 + ... + 36970.

Almost surely, 2^139980907 is an apocalyptic number.

139980907 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

139980907 is a deficient number, since it is larger than the sum of its proper divisors (23506417).

139980907 is a wasteful number, since it uses less digits than its factorization.

139980907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4059 (or 4031 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 46.

The square root of 139980907 is about 11831.3527121796. The cubic root of 139980907 is about 519.2258042810.

The spelling of 139980907 in words is "one hundred thirty-nine million, nine hundred eighty thousand, nine hundred seven".