1187210564 has 24 divisors (see below), whose sum is σ = 2183404608. Its totient is φ = 564127200.

The previous prime is 1187210551. The next prime is 1187210581. The reversal of 1187210564 is 4650127811.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 86912 + ... + 99639.

It is an arithmetic number, because the mean of its divisors is an integer number (90975192).

Almost surely, 2^1187210564 is an apocalyptic number.

It is an amenable number.

1187210564 is a deficient number, since it is larger than the sum of its proper divisors (996194044).

1187210564 is a wasteful number, since it uses less digits than its factorization.

1187210564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186635 (or 186633 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 1187210564 is about 34455.9220454191. The cubic root of 1187210564 is about 1058.8698539967.

The spelling of 1187210564 in words is "one billion, one hundred eighty-seven million, two hundred ten thousand, five hundred sixty-four".