1159472491 has 2 divisors, whose sum is σ = 1159472492. Its totient is φ = 1159472490.

The previous prime is 1159472477. The next prime is 1159472533. The reversal of 1159472491 is 1942749511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1159472491 - 2¹⁷ = 1159341419 is a prime.

It is not a weakly prime, because it can be changed into another prime (1159472591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 579736245 + 579736246.

It is an arithmetic number, because the mean of its divisors is an integer number (579736246).

Almost surely, 2^1159472491 is an apocalyptic number.

1159472491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1159472491 is an equidigital number, since it uses as much as digits as its factorization.

1159472491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 43.

The square root of 1159472491 is about 34051.0277524776. The cubic root of 1159472491 is about 1050.5582793793.

The spelling of 1159472491 in words is "one billion, one hundred fifty-nine million, four hundred seventy-two thousand, four hundred ninety-one".