1159547923 has 2 divisors, whose sum is σ = 1159547924. Its totient is φ = 1159547922.

The previous prime is 1159547899. The next prime is 1159547929. The reversal of 1159547923 is 3297459511.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1159547923 is a prime.

It is a super-2 number, since 2×1159547923² = 2689102771467227858, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1159547929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 579773961 + 579773962.

It is an arithmetic number, because the mean of its divisors is an integer number (579773962).

Almost surely, 2^1159547923 is an apocalyptic number.

1159547923 is a deficient number, since it is larger than the sum of its proper divisors (1).

1159547923 is an equidigital number, since it uses as much as digits as its factorization.

1159547923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 340200, while the sum is 46.

The square root of 1159547923 is about 34052.1353662292. The cubic root of 1159547923 is about 1050.5810610018.

The spelling of 1159547923 in words is "one billion, one hundred fifty-nine million, five hundred forty-seven thousand, nine hundred twenty-three".