1164921118 has 4 divisors (see below), whose sum is σ = 1747381680. Its totient is φ = 582460558.

The previous prime is 1164921047. The next prime is 1164921137. The reversal of 1164921118 is 8111294611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8111294611 = 7 ⋅1158756373.

It is a super-2 number, since 2×1164921118² = 2714082422324739848, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 291230278 + ... + 291230281.

It is an arithmetic number, because the mean of its divisors is an integer number (436845420).

Almost surely, 2^1164921118 is an apocalyptic number.

1164921118 is a deficient number, since it is larger than the sum of its proper divisors (582460562).

1164921118 is an equidigital number, since it uses as much as digits as its factorization.

1164921118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582460561.

The product of its digits is 3456, while the sum is 34.

The square root of 1164921118 is about 34130.9407722670. The cubic root of 1164921118 is about 1052.2013131150.

The spelling of 1164921118 in words is "one billion, one hundred sixty-four million, nine hundred twenty-one thousand, one hundred eighteen".