12432755 has 4 divisors (see below), whose sum is σ = 14919312. Its totient is φ = 9946200.

The previous prime is 12432737. The next prime is 12432757. The reversal of 12432755 is 55723421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55723421 = 13 ⋅4286417.

It is not a de Polignac number, because 12432755 - 2²⁰ = 11384179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12432757) 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, 1243271 + ... + 1243280.

It is an arithmetic number, because the mean of its divisors is an integer number (3729828).

Almost surely, 2^12432755 is an apocalyptic number.

12432755 is a deficient number, since it is larger than the sum of its proper divisors (2486557).

12432755 is an equidigital number, since it uses as much as digits as its factorization.

12432755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2486556.

The product of its digits is 8400, while the sum is 29.

The square root of 12432755 is about 3526.0112024780. The cubic root of 12432755 is about 231.6625283206.

The spelling of 12432755 in words is "twelve million, four hundred thirty-two thousand, seven hundred fifty-five".