12432149 has 4 divisors (see below), whose sum is σ = 12462240. Its totient is φ = 12402060.

The previous prime is 12432107. The next prime is 12432163. The reversal of 12432149 is 94123421.

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 12432149 - 2⁸ = 12431893 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12432169) 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, 14417 + ... + 15254.

It is an arithmetic number, because the mean of its divisors is an integer number (3115560).

Almost surely, 2^12432149 is an apocalyptic number.

It is an amenable number.

12432149 is a deficient number, since it is larger than the sum of its proper divisors (30091).

12432149 is an equidigital number, since it uses as much as digits as its factorization.

12432149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30090.

The product of its digits is 1728, while the sum is 26.

The square root of 12432149 is about 3525.9252686352. The cubic root of 12432149 is about 231.6587643447.

The spelling of 12432149 in words is "twelve million, four hundred thirty-two thousand, one hundred forty-nine".