1308119947 has 2 divisors, whose sum is σ = 1308119948. Its totient is φ = 1308119946.

The previous prime is 1308119881. The next prime is 1308119957. The reversal of 1308119947 is 7499118031.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1308119947 - 2²³ = 1299731339 is a prime.

It is a super-2 number, since 2×1308119947² = 3422355591478565618, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1308119957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 654059973 + 654059974.

It is an arithmetic number, because the mean of its divisors is an integer number (654059974).

Almost surely, 2^1308119947 is an apocalyptic number.

1308119947 is a deficient number, since it is larger than the sum of its proper divisors (1).

1308119947 is an equidigital number, since it uses as much as digits as its factorization.

1308119947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 43.

The square root of 1308119947 is about 36167.9408730992. The cubic root of 1308119947 is about 1093.6604894716.

The spelling of 1308119947 in words is "one billion, three hundred eight million, one hundred nineteen thousand, nine hundred forty-seven".