1304252399 has 2 divisors, whose sum is σ = 1304252400. Its totient is φ = 1304252398.

The previous prime is 1304252387. The next prime is 1304252413. The reversal of 1304252399 is 9932524031.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1304252399 - 2¹² = 1304248303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1304222399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 652126199 + 652126200.

It is an arithmetic number, because the mean of its divisors is an integer number (652126200).

Almost surely, 2^1304252399 is an apocalyptic number.

1304252399 is a deficient number, since it is larger than the sum of its proper divisors (1).

1304252399 is an equidigital number, since it uses as much as digits as its factorization.

1304252399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 1304252399 is about 36114.4347733701. The cubic root of 1304252399 is about 1092.5815976212.

The spelling of 1304252399 in words is "one billion, three hundred four million, two hundred fifty-two thousand, three hundred ninety-nine".