1164273897 has 16 divisors (see below), whose sum is σ = 1576599552. Its totient is φ = 764159760.

The previous prime is 1164273871. The next prime is 1164273899. The reversal of 1164273897 is 7983724611.

It is a happy number.

It is not a de Polignac number, because 1164273897 - 2⁸ = 1164273641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1164273899) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38248 + ... + 61574.

It is an arithmetic number, because the mean of its divisors is an integer number (98537472).

Almost surely, 2^1164273897 is an apocalyptic number.

It is an amenable number.

1164273897 is a deficient number, since it is larger than the sum of its proper divisors (412325655).

1164273897 is a wasteful number, since it uses less digits than its factorization.

1164273897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23588.

The product of its digits is 508032, while the sum is 48.

The square root of 1164273897 is about 34121.4580139829. The cubic root of 1164273897 is about 1052.0064120940.

The spelling of 1164273897 in words is "one billion, one hundred sixty-four million, two hundred seventy-three thousand, eight hundred ninety-seven".