1304534431 has 2 divisors, whose sum is σ = 1304534432. Its totient is φ = 1304534430.

The previous prime is 1304534381. The next prime is 1304534437. The reversal of 1304534431 is 1344354031.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1304534431 is a prime.

It is a super-2 number, since 2×1304534431² = 3403620163328987522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1304534431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1304534437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 652267215 + 652267216.

It is an arithmetic number, because the mean of its divisors is an integer number (652267216).

Almost surely, 2^1304534431 is an apocalyptic number.

1304534431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1304534431 is an equidigital number, since it uses as much as digits as its factorization.

1304534431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 1304534431 is about 36118.3392613780. The cubic root of 1304534431 is about 1092.6603453557.

Adding to 1304534431 its reverse (1344354031), we get a palindrome (2648888462).

The spelling of 1304534431 in words is "one billion, three hundred four million, five hundred thirty-four thousand, four hundred thirty-one".