1164874181 has 2 divisors, whose sum is σ = 1164874182. Its totient is φ = 1164874180.

The previous prime is 1164874141. The next prime is 1164874237. The reversal of 1164874181 is 1814784611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 875568100 + 289306081 = 29590^2 + 17009^2 .

It is a cyclic number.

It is not a de Polignac number, because 1164874181 - 2³⁰ = 91132357 is a prime.

It is a super-2 number, since 2×1164874181² = 2713863715120841522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1164874141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 582437090 + 582437091.

It is an arithmetic number, because the mean of its divisors is an integer number (582437091).

Almost surely, 2^1164874181 is an apocalyptic number.

It is an amenable number.

1164874181 is a deficient number, since it is larger than the sum of its proper divisors (1).

1164874181 is an equidigital number, since it uses as much as digits as its factorization.

1164874181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43008, while the sum is 41.

The square root of 1164874181 is about 34130.2531634326. The cubic root of 1164874181 is about 1052.1871811606.

The spelling of 1164874181 in words is "one billion, one hundred sixty-four million, eight hundred seventy-four thousand, one hundred eighty-one".