432213251 has 4 divisors (see below), whose sum is σ = 440368272. Its totient is φ = 424058232.

The previous prime is 432213241. The next prime is 432213259. The reversal of 432213251 is 152312234.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-432213251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (432213259) 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, 4077431 + ... + 4077536.

It is an arithmetic number, because the mean of its divisors is an integer number (110092068).

Almost surely, 2^432213251 is an apocalyptic number.

432213251 is a deficient number, since it is larger than the sum of its proper divisors (8155021).

432213251 is an equidigital number, since it uses as much as digits as its factorization.

432213251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8155020.

The product of its digits is 1440, while the sum is 23.

The square root of 432213251 is about 20789.7390796518. The cubic root of 432213251 is about 756.0769980971.

Adding to 432213251 its reverse (152312234), we get a palindrome (584525485).

The spelling of 432213251 in words is "four hundred thirty-two million, two hundred thirteen thousand, two hundred fifty-one".