1161233264 has 10 divisors (see below), whose sum is σ = 2249889480. Its totient is φ = 580616624.

The previous prime is 1161233261. The next prime is 1161233267. The reversal of 1161233264 is 4623321611.

It is an interprime number because it is at equal distance from previous prime (1161233261) and next prime (1161233267).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161233261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36288524 + ... + 36288555.

It is an arithmetic number, because the mean of its divisors is an integer number (224988948).

Almost surely, 2^1161233264 is an apocalyptic number.

It is an amenable number.

1161233264 is a deficient number, since it is larger than the sum of its proper divisors (1088656216).

1161233264 is an equidigital number, since it uses as much as digits as its factorization.

1161233264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72577087 (or 72577081 counting only the distinct ones).

The product of its digits is 5184, while the sum is 29.

The square root of 1161233264 is about 34076.8728612236. The cubic root of 1161233264 is about 1051.0898024330.

Adding to 1161233264 its reverse (4623321611), we get a palindrome (5784554875).

The spelling of 1161233264 in words is "one billion, one hundred sixty-one million, two hundred thirty-three thousand, two hundred sixty-four".