149549233 has 4 divisors (see below), whose sum is σ = 149728320. Its totient is φ = 149370148.

The previous prime is 149549173. The next prime is 149549249. The reversal of 149549233 is 332945941.

149549233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 149549233 - 2¹⁷ = 149418161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149549033) 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, 88285 + ... + 89962.

It is an arithmetic number, because the mean of its divisors is an integer number (37432080).

Almost surely, 2^149549233 is an apocalyptic number.

It is an amenable number.

149549233 is a deficient number, since it is larger than the sum of its proper divisors (179087).

149549233 is an equidigital number, since it uses as much as digits as its factorization.

149549233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179086.

The product of its digits is 116640, while the sum is 40.

The square root of 149549233 is about 12229.0323819998. The cubic root of 149549233 is about 530.7965156515.

The spelling of 149549233 in words is "one hundred forty-nine million, five hundred forty-nine thousand, two hundred thirty-three".