431136479 has 2 divisors, whose sum is σ = 431136480. Its totient is φ = 431136478.

The previous prime is 431136451. The next prime is 431136493. The reversal of 431136479 is 974631134.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-431136479 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (431136379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215568239 + 215568240.

It is an arithmetic number, because the mean of its divisors is an integer number (215568240).

Almost surely, 2^431136479 is an apocalyptic number.

431136479 is a deficient number, since it is larger than the sum of its proper divisors (1).

431136479 is an equidigital number, since it uses as much as digits as its factorization.

431136479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 38.

The square root of 431136479 is about 20763.8262129117. The cubic root of 431136479 is about 755.4486049364.

The spelling of 431136479 in words is "four hundred thirty-one million, one hundred thirty-six thousand, four hundred seventy-nine".