431204139 has 12 divisors (see below), whose sum is σ = 623520456. Its totient is φ = 287160192.

The previous prime is 431204113. The next prime is 431204143. The reversal of 431204139 is 931402134.

It is not a de Polignac number, because 431204139 - 2²⁴ = 414426923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (431204539) 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 11 ways as a sum of consecutive naturals, for example, 16774 + ... + 33819.

It is an arithmetic number, because the mean of its divisors is an integer number (51960038).

Almost surely, 2^431204139 is an apocalyptic number.

431204139 is a deficient number, since it is larger than the sum of its proper divisors (192316317).

431204139 is a wasteful number, since it uses less digits than its factorization.

431204139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51546 (or 51543 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 431204139 is about 20765.4554248155. The cubic root of 431204139 is about 755.4881214094.

The spelling of 431204139 in words is "four hundred thirty-one million, two hundred four thousand, one hundred thirty-nine".