1164956513 has 4 divisors (see below), whose sum is σ = 1331378880. Its totient is φ = 998534148.

The previous prime is 1164956489. The next prime is 1164956563. The reversal of 1164956513 is 3156594611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3156594611 = 43 ⋅73409177.

It is a cyclic number.

It is not a de Polignac number, because 1164956513 - 2⁶ = 1164956449 is a prime.

It is a super-2 number, since 2×1164956513² = 2714247354362238338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1164956563) 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 in 3 ways as a sum of consecutive naturals, for example, 83211173 + ... + 83211186.

It is an arithmetic number, because the mean of its divisors is an integer number (332844720).

Almost surely, 2^1164956513 is an apocalyptic number.

It is an amenable number.

1164956513 is a deficient number, since it is larger than the sum of its proper divisors (166422367).

1164956513 is an equidigital number, since it uses as much as digits as its factorization.

1164956513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166422366.

The product of its digits is 97200, while the sum is 41.

The square root of 1164956513 is about 34131.4592861190. The cubic root of 1164956513 is about 1052.2119697130.

The spelling of 1164956513 in words is "one billion, one hundred sixty-four million, nine hundred fifty-six thousand, five hundred thirteen".