149373979 has 4 divisors (see below), whose sum is σ = 149402160. Its totient is φ = 149345800.

The previous prime is 149373907. The next prime is 149373997. The reversal of 149373979 is 979373941.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 149373979 - 2⁹ = 149373467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149373179) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3472 + ... + 17629.

It is an arithmetic number, because the mean of its divisors is an integer number (37350540).

Almost surely, 2^149373979 is an apocalyptic number.

149373979 is a deficient number, since it is larger than the sum of its proper divisors (28181).

149373979 is an equidigital number, since it uses as much as digits as its factorization.

149373979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28180.

The product of its digits is 1285956, while the sum is 52.

The square root of 149373979 is about 12221.8647922484. The cubic root of 149373979 is about 530.5890910415.

The spelling of 149373979 in words is "one hundred forty-nine million, three hundred seventy-three thousand, nine hundred seventy-nine".