149023913 has 8 divisors (see below), whose sum is σ = 155420160. Its totient is φ = 142727040.

The previous prime is 149023907. The next prime is 149023933. The reversal of 149023913 is 319320941.

149023913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 149023913 - 2¹⁰ = 149022889 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 149023913.

It is not an unprimeable number, because it can be changed into a prime (149023933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21773 + ... + 27786.

It is an arithmetic number, because the mean of its divisors is an integer number (19427520).

Almost surely, 2^149023913 is an apocalyptic number.

It is an amenable number.

149023913 is a deficient number, since it is larger than the sum of its proper divisors (6396247).

149023913 is an equidigital number, since it uses as much as digits as its factorization.

149023913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49687.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 149023913 is about 12207.5350910821. The cubic root of 149023913 is about 530.1742787487.

The spelling of 149023913 in words is "one hundred forty-nine million, twenty-three thousand, nine hundred thirteen".