146991179 has 2 divisors, whose sum is σ = 146991180. Its totient is φ = 146991178.

The previous prime is 146991133. The next prime is 146991193. The reversal of 146991179 is 971199641.

It is a strong prime.

It is an emirp because it is prime and its reverse (971199641) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146991179 is a prime.

It is not a weakly prime, because it can be changed into another prime (146991199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73495589 + 73495590.

It is an arithmetic number, because the mean of its divisors is an integer number (73495590).

Almost surely, 2^146991179 is an apocalyptic number.

146991179 is a deficient number, since it is larger than the sum of its proper divisors (1).

146991179 is an equidigital number, since it uses as much as digits as its factorization.

146991179 is an evil number, because the sum of its binary digits is even.

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

The square root of 146991179 is about 12123.9918756159. The cubic root of 146991179 is about 527.7526521183.

The spelling of 146991179 in words is "one hundred forty-six million, nine hundred ninety-one thousand, one hundred seventy-nine".