1164808491 has 32 divisors (see below), whose sum is σ = 1946112000. Its totient is φ = 602030880.

The previous prime is 1164808487. The next prime is 1164808523. The reversal of 1164808491 is 1948084611.

It is a happy number.

It is not a de Polignac number, because 1164808491 - 2² = 1164808487 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1164808451) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33300 + ... + 58638.

It is an arithmetic number, because the mean of its divisors is an integer number (60816000).

Almost surely, 2^1164808491 is an apocalyptic number.

1164808491 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1164808491 is a deficient number, since it is larger than the sum of its proper divisors (781303509).

1164808491 is a wasteful number, since it uses less digits than its factorization.

1164808491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25559.

The product of its (nonzero) digits is 55296, while the sum is 42.

The square root of 1164808491 is about 34129.2908071645. The cubic root of 1164808491 is about 1052.1674023506.

The spelling of 1164808491 in words is "one billion, one hundred sixty-four million, eight hundred eight thousand, four hundred ninety-one".