431305045 has 24 divisors (see below), whose sum is σ = 559231200. Its totient is φ = 319180032.

The previous prime is 431305033. The next prime is 431305051. The reversal of 431305045 is 540503134.

It is not a de Polignac number, because 431305045 - 2¹¹ = 431302997 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82726 + ... + 87784.

It is an arithmetic number, because the mean of its divisors is an integer number (23301300).

Almost surely, 2^431305045 is an apocalyptic number.

It is an amenable number.

431305045 is a deficient number, since it is larger than the sum of its proper divisors (127926155).

431305045 is a wasteful number, since it uses less digits than its factorization.

431305045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5157 (or 5140 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 431305045 is about 20767.8849428631. The cubic root of 431305045 is about 755.5470473579.

Adding to 431305045 its reverse (540503134), we get a palindrome (971808179).

The spelling of 431305045 in words is "four hundred thirty-one million, three hundred five thousand, forty-five".