431085163 has 8 divisors (see below), whose sum is σ = 447482880. Its totient is φ = 414843240.

The previous prime is 431085157. The next prime is 431085209. The reversal of 431085163 is 361580134.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 431085163 - 2⁹ = 431084651 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (431085563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33295 + ... + 44392.

It is an arithmetic number, because the mean of its divisors is an integer number (55935360).

Almost surely, 2^431085163 is an apocalyptic number.

431085163 is a deficient number, since it is larger than the sum of its proper divisors (16397717).

431085163 is a wasteful number, since it uses less digits than its factorization.

431085163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77897.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 431085163 is about 20762.5904693995. The cubic root of 431085163 is about 755.4186313351.

The spelling of 431085163 in words is "four hundred thirty-one million, eighty-five thousand, one hundred sixty-three".