1164249823 has 4 divisors (see below), whose sum is σ = 1270090728. Its totient is φ = 1058408920.

The previous prime is 1164249809. The next prime is 1164249841. The reversal of 1164249823 is 3289424611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1164249823 - 2²⁹ = 627378911 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1164249883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52920436 + ... + 52920457.

It is an arithmetic number, because the mean of its divisors is an integer number (317522682).

Almost surely, 2^1164249823 is an apocalyptic number.

1164249823 is a deficient number, since it is larger than the sum of its proper divisors (105840905).

1164249823 is a wasteful number, since it uses less digits than its factorization.

1164249823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105840904.

The product of its digits is 82944, while the sum is 40.

The square root of 1164249823 is about 34121.1052429431. The cubic root of 1164249823 is about 1051.9991611722. Note that the first 3 decimals are identical.

The spelling of 1164249823 in words is "one billion, one hundred sixty-four million, two hundred forty-nine thousand, eight hundred twenty-three".