1161577023 has 8 divisors (see below), whose sum is σ = 1549310208. Its totient is φ = 774114264.

The previous prime is 1161577019. The next prime is 1161577033. The reversal of 1161577023 is 3207751611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1161577023 - 2² = 1161577019 is a prime.

It is a super-2 number, since 2×1161577023² = 2698522360723085058, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161577033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57361 + ... + 74922.

It is an arithmetic number, because the mean of its divisors is an integer number (193663776).

Almost surely, 2^1161577023 is an apocalyptic number.

1161577023 is a deficient number, since it is larger than the sum of its proper divisors (387733185).

1161577023 is a wasteful number, since it uses less digits than its factorization.

1161577023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135213.

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 1161577023 is about 34081.9163633737. The cubic root of 1161577023 is about 1051.1935099718.

The spelling of 1161577023 in words is "one billion, one hundred sixty-one million, five hundred seventy-seven thousand, twenty-three".