431656045 has 12 divisors (see below), whose sum is σ = 522689076. Its totient is φ = 342218240.

The previous prime is 431656031. The next prime is 431656051. The reversal of 431656045 is 540656134.

It can be written as a sum of positive squares in 6 ways, for example, as 123232201 + 308423844 = 11101^2 + 17562^2 .

It is not a de Polignac number, because 431656045 - 2⁵ = 431656013 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 431656045.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60465 + ... + 67225.

It is an arithmetic number, because the mean of its divisors is an integer number (43557423).

Almost surely, 2^431656045 is an apocalyptic number.

It is an amenable number.

431656045 is a deficient number, since it is larger than the sum of its proper divisors (91033031).

431656045 is an equidigital number, since it uses as much as digits as its factorization.

431656045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6992 (or 6879 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 431656045 is about 20776.3337718665. Note that the first 3 decimals coincide. The cubic root of 431656045 is about 755.7519488225.

The spelling of 431656045 in words is "four hundred thirty-one million, six hundred fifty-six thousand, forty-five".