149580979 has 4 divisors (see below), whose sum is σ = 149854984. Its totient is φ = 149306976.

The previous prime is 149580941. The next prime is 149581001. The reversal of 149580979 is 979085941.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149580979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149580919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136182 + ... + 137275.

It is an arithmetic number, because the mean of its divisors is an integer number (37463746).

Almost surely, 2^149580979 is an apocalyptic number.

149580979 is a deficient number, since it is larger than the sum of its proper divisors (274005).

149580979 is an equidigital number, since it uses as much as digits as its factorization.

149580979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274004.

The product of its (nonzero) digits is 816480, while the sum is 52.

The square root of 149580979 is about 12230.3302898981. The cubic root of 149580979 is about 530.8340717875.

The spelling of 149580979 in words is "one hundred forty-nine million, five hundred eighty thousand, nine hundred seventy-nine".