149920959 has 4 divisors (see below), whose sum is σ = 199894616. Its totient is φ = 99947304.

The previous prime is 149920951. The next prime is 149920993. The reversal of 149920959 is 959029941.

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

It is not a de Polignac number, because 149920959 - 2³ = 149920951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149920951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24986824 + ... + 24986829.

It is an arithmetic number, because the mean of its divisors is an integer number (49973654).

Almost surely, 2^149920959 is an apocalyptic number.

149920959 is a deficient number, since it is larger than the sum of its proper divisors (49973657).

149920959 is an equidigital number, since it uses as much as digits as its factorization.

149920959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49973656.

The product of its (nonzero) digits is 262440, while the sum is 48.

The square root of 149920959 is about 12244.2214534041. The cubic root of 149920959 is about 531.2359419763.

The spelling of 149920959 in words is "one hundred forty-nine million, nine hundred twenty thousand, nine hundred fifty-nine".