1308994019 has 2 divisors, whose sum is σ = 1308994020. Its totient is φ = 1308994018.

The previous prime is 1308994013. The next prime is 1308994061. The reversal of 1308994019 is 9104998031.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1308994019 is a prime.

It is a super-2 number, since 2×1308994019² = 3426930683555544722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1308994013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 654497009 + 654497010.

It is an arithmetic number, because the mean of its divisors is an integer number (654497010).

Almost surely, 2^1308994019 is an apocalyptic number.

1308994019 is a deficient number, since it is larger than the sum of its proper divisors (1).

1308994019 is an equidigital number, since it uses as much as digits as its factorization.

1308994019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 44.

The square root of 1308994019 is about 36180.0223742330. The cubic root of 1308994019 is about 1093.9040260516.

The spelling of 1308994019 in words is "one billion, three hundred eight million, nine hundred ninety-four thousand, nineteen".