1291552159 has 2 divisors, whose sum is σ = 1291552160. Its totient is φ = 1291552158.

The previous prime is 1291552109. The next prime is 1291552183. The reversal of 1291552159 is 9512551921.

It is a strong prime.

It is an emirp because it is prime and its reverse (9512551921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1291552159 - 2²⁹ = 754681247 is a prime.

It is a super-2 number, since 2×1291552159² = 3336213958835122562, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1291552109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 645776079 + 645776080.

It is an arithmetic number, because the mean of its divisors is an integer number (645776080).

Almost surely, 2^1291552159 is an apocalyptic number.

1291552159 is a deficient number, since it is larger than the sum of its proper divisors (1).

1291552159 is an equidigital number, since it uses as much as digits as its factorization.

1291552159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40500, while the sum is 40.

The square root of 1291552159 is about 35938.1713363382. The cubic root of 1291552159 is about 1089.0236632318.

The spelling of 1291552159 in words is "one billion, two hundred ninety-one million, five hundred fifty-two thousand, one hundred fifty-nine".