149232539 has 4 divisors (see below), whose sum is σ = 149873256. Its totient is φ = 148591824.

The previous prime is 149232529. The next prime is 149232547. The reversal of 149232539 is 935232941.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 149232539 - 2⁸ = 149232283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149232529) 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, 320009 + ... + 320474.

It is an arithmetic number, because the mean of its divisors is an integer number (37468314).

Almost surely, 2^149232539 is an apocalyptic number.

149232539 is a deficient number, since it is larger than the sum of its proper divisors (640717).

149232539 is an equidigital number, since it uses as much as digits as its factorization.

149232539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640716.

The product of its digits is 58320, while the sum is 38.

The square root of 149232539 is about 12216.0770708112. The cubic root of 149232539 is about 530.4215691816.

The spelling of 149232539 in words is "one hundred forty-nine million, two hundred thirty-two thousand, five hundred thirty-nine".