431232541 has 4 divisors (see below), whose sum is σ = 431560800. Its totient is φ = 430904284.

The previous prime is 431232533. The next prime is 431232551. The reversal of 431232541 is 145232134.

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, and also an emirpimes, since its reverse is a distinct semiprime: 145232134 = 2 ⋅72616067.

It is a cyclic number.

It is not a de Polignac number, because 431232541 - 2³ = 431232533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431232551) 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, 162151 + ... + 164788.

It is an arithmetic number, because the mean of its divisors is an integer number (107890200).

Almost surely, 2^431232541 is an apocalyptic number.

It is an amenable number.

431232541 is a deficient number, since it is larger than the sum of its proper divisors (328259).

431232541 is a wasteful number, since it uses less digits than its factorization.

431232541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328258.

The product of its digits is 2880, while the sum is 25.

The square root of 431232541 is about 20766.1392897187. The cubic root of 431232541 is about 755.5047082187.

Adding to 431232541 its reverse (145232134), we get a palindrome (576464675).

The spelling of 431232541 in words is "four hundred thirty-one million, two hundred thirty-two thousand, five hundred forty-one".