1161251584 has 18 divisors (see below), whose sum is σ = 2317967540. Its totient is φ = 580625664.

The previous prime is 1161251563. The next prime is 1161251591. The reversal of 1161251584 is 4851521611.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2267814 + ... + 2268325.

Almost surely, 2^1161251584 is an apocalyptic number.

It is an amenable number.

1161251584 is a deficient number, since it is larger than the sum of its proper divisors (1156715956).

1161251584 is an frugal number, since it uses more digits than its factorization.

1161251584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4536155 (or 4536141 counting only the distinct ones).

The product of its digits is 9600, while the sum is 34.

The square root of 1161251584 is about 34077.1416641713. The cubic root of 1161251584 is about 1051.0953298507.

The spelling of 1161251584 in words is "one billion, one hundred sixty-one million, two hundred fifty-one thousand, five hundred eighty-four".