139980179 has 16 divisors (see below), whose sum is σ = 146995200. Its totient is φ = 133189056.

The previous prime is 139980133. The next prime is 139980209. The reversal of 139980179 is 971089931.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-139980179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139982179) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 302102 + ... + 302564.

It is an arithmetic number, because the mean of its divisors is an integer number (9187200).

Almost surely, 2^139980179 is an apocalyptic number.

139980179 is a deficient number, since it is larger than the sum of its proper divisors (7015021).

139980179 is an equidigital number, since it uses as much as digits as its factorization.

139980179 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674.

The product of its (nonzero) digits is 122472, while the sum is 47.

The square root of 139980179 is about 11831.3219464268. The cubic root of 139980179 is about 519.2249041653.

The spelling of 139980179 in words is "one hundred thirty-nine million, nine hundred eighty thousand, one hundred seventy-nine".