431563045 has 4 divisors (see below), whose sum is σ = 517875660. Its totient is φ = 345250432.

The previous prime is 431563021. The next prime is 431563049. The reversal of 431563045 is 540365134.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 540365134 = 2 ⋅270182567.

It can be written as a sum of positive squares in 2 ways, for example, as 154107396 + 277455649 = 12414^2 + 16657^2 .

It is a cyclic number.

It is not a de Polignac number, because 431563045 - 2⁷ = 431562917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 431562998 and 431563016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431563049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43156300 + ... + 43156309.

It is an arithmetic number, because the mean of its divisors is an integer number (129468915).

Almost surely, 2^431563045 is an apocalyptic number.

It is an amenable number.

431563045 is a deficient number, since it is larger than the sum of its proper divisors (86312615).

431563045 is an equidigital number, since it uses as much as digits as its factorization.

431563045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86312614.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 431563045 is about 20774.0955278443. The cubic root of 431563045 is about 755.6976695105.

The spelling of 431563045 in words is "four hundred thirty-one million, five hundred sixty-three thousand, forty-five".