431055145 has 32 divisors (see below), whose sum is σ = 560590848. Its totient is φ = 317011968.

The previous prime is 431055133. The next prime is 431055151. The reversal of 431055145 is 541550134.

It is a cyclic number.

It is not a de Polignac number, because 431055145 - 2⁵ = 431055113 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 787762 + ... + 788308.

It is an arithmetic number, because the mean of its divisors is an integer number (17518464).

Almost surely, 2^431055145 is an apocalyptic number.

It is an amenable number.

431055145 is a deficient number, since it is larger than the sum of its proper divisors (129535703).

431055145 is a wasteful number, since it uses less digits than its factorization.

431055145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 431055145 is about 20761.8675701393. The cubic root of 431055145 is about 755.4010967621.

The spelling of 431055145 in words is "four hundred thirty-one million, fifty-five thousand, one hundred forty-five".