431432545 has 32 divisors (see below), whose sum is σ = 574801920. Its totient is φ = 309442560.

The previous prime is 431432539. The next prime is 431432557. The reversal of 431432545 is 545234134.

It is not a de Polignac number, because 431432545 - 2³ = 431432537 is a prime.

It is a super-2 number, since 2×431432545² = 372268081770354050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 148416 + ... + 151294.

It is an arithmetic number, because the mean of its divisors is an integer number (17962560).

Almost surely, 2^431432545 is an apocalyptic number.

It is an amenable number.

431432545 is a deficient number, since it is larger than the sum of its proper divisors (143369375).

431432545 is a wasteful number, since it uses less digits than its factorization.

431432545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2985.

The product of its digits is 28800, while the sum is 31.

The square root of 431432545 is about 20770.9543593933. The cubic root of 431432545 is about 755.6214902291.

Adding to 431432545 its reverse (545234134), we get a palindrome (976666679).

The spelling of 431432545 in words is "four hundred thirty-one million, four hundred thirty-two thousand, five hundred forty-five".