1145874564 has 72 divisors (see below), whose sum is σ = 3002650560. Its totient is φ = 368018112.

The previous prime is 1145874557. The next prime is 1145874637. The reversal of 1145874564 is 4654785411.

1145874564 is a `hidden beast` number, since 1 + 1 + 4 + 5 + 87 + 4 + 564 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 712249 + ... + 713855.

It is an arithmetic number, because the mean of its divisors is an integer number (41703480).

Almost surely, 2^1145874564 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1145874564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1501325280).

1145874564 is an abundant number, since it is smaller than the sum of its proper divisors (1856775996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1145874564 is a wasteful number, since it uses less digits than its factorization.

1145874564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2329 (or 2324 counting only the distinct ones).

The product of its digits is 537600, while the sum is 45.

The square root of 1145874564 is about 33850.7690311461. The cubic root of 1145874564 is about 1046.4352474064.

The spelling of 1145874564 in words is "one billion, one hundred forty-five million, eight hundred seventy-four thousand, five hundred sixty-four".