1308994919 has 2 divisors, whose sum is σ = 1308994920. Its totient is φ = 1308994918.

The previous prime is 1308994903. The next prime is 1308994937. The reversal of 1308994919 is 9194998031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1308994919 - 2⁴ = 1308994903 is a prime.

It is a super-2 number, since 2×1308994919² = 3426935395935633122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1308994019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 654497459 + 654497460.

It is an arithmetic number, because the mean of its divisors is an integer number (654497460).

Almost surely, 2^1308994919 is an apocalyptic number.

1308994919 is a deficient number, since it is larger than the sum of its proper divisors (1).

1308994919 is an equidigital number, since it uses as much as digits as its factorization.

1308994919 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 53.

The square root of 1308994919 is about 36180.0348120341. The cubic root of 1308994919 is about 1093.9042767564.

The spelling of 1308994919 in words is "one billion, three hundred eight million, nine hundred ninety-four thousand, nine hundred nineteen".