1308493399 has 2 divisors, whose sum is σ = 1308493400. Its totient is φ = 1308493398.

The previous prime is 1308493367. The next prime is 1308493429. The reversal of 1308493399 is 9933948031.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1308493399 - 2⁵ = 1308493367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1308493339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 654246699 + 654246700.

It is an arithmetic number, because the mean of its divisors is an integer number (654246700).

Almost surely, 2^1308493399 is an apocalyptic number.

1308493399 is a deficient number, since it is larger than the sum of its proper divisors (1).

1308493399 is an equidigital number, since it uses as much as digits as its factorization.

1308493399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 629856, while the sum is 49.

The square root of 1308493399 is about 36173.1032536607. The cubic root of 1308493399 is about 1093.7645550651.

The spelling of 1308493399 in words is "one billion, three hundred eight million, four hundred ninety-three thousand, three hundred ninety-nine".