149803203 has 24 divisors (see below), whose sum is σ = 220301200. Its totient is φ = 90478080.

The previous prime is 149803193. The next prime is 149803207. The reversal of 149803203 is 302308941.

149803203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 149803203 - 2⁶ = 149803139 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149803207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 147963 + ... + 148971.

Almost surely, 2^149803203 is an apocalyptic number.

149803203 is a deficient number, since it is larger than the sum of its proper divisors (70497997).

149803203 is a wasteful number, since it uses less digits than its factorization.

149803203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1443 (or 1432 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 149803203 is about 12239.4118731253. The cubic root of 149803203 is about 531.0968184331.

The spelling of 149803203 in words is "one hundred forty-nine million, eight hundred three thousand, two hundred three".