431055243 has 8 divisors (see below), whose sum is σ = 638600400. Its totient is φ = 287370144.

The previous prime is 431055203. The next prime is 431055269. The reversal of 431055243 is 342550134.

It is not a de Polignac number, because 431055243 - 2¹⁰ = 431054219 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 15965009 = 431055243 / (4 + 3 + 1 + 0 + 5 + 5 + 2 + 4 + 3).

It is not an unprimeable number, because it can be changed into a prime (431055203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7982478 + ... + 7982531.

It is an arithmetic number, because the mean of its divisors is an integer number (79825050).

Almost surely, 2^431055243 is an apocalyptic number.

431055243 is a deficient number, since it is larger than the sum of its proper divisors (207545157).

431055243 is a wasteful number, since it uses less digits than its factorization.

431055243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15965018 (or 15965012 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 431055243 is about 20761.8699302351. The cubic root of 431055243 is about 755.4011540087.

The spelling of 431055243 in words is "four hundred thirty-one million, fifty-five thousand, two hundred forty-three".