1123364864 has 26 divisors (see below), whose sum is σ = 2246463660. Its totient is φ = 561680384.

The previous prime is 1123364861. The next prime is 1123364903. The reversal of 1123364864 is 4684633211.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1123364861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133034 + ... + 141225.

Almost surely, 2^1123364864 is an apocalyptic number.

It is an amenable number.

1123364864 is a deficient number, since it is larger than the sum of its proper divisors (1123098796).

1123364864 is an frugal number, since it uses more digits than its factorization.

1123364864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274283 (or 274261 counting only the distinct ones).

The product of its digits is 82944, while the sum is 38.

The square root of 1123364864 is about 33516.6356306835. The cubic root of 1123364864 is about 1039.5377827685.

The spelling of 1123364864 in words is "one billion, one hundred twenty-three million, three hundred sixty-four thousand, eight hundred sixty-four".