1145635188 has 48 divisors (see below), whose sum is σ = 2698031616. Its totient is φ = 378338400.

The previous prime is 1145635171. The next prime is 1145635213. The reversal of 1145635188 is 8815365411.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1019595 + ... + 1020717.

It is an arithmetic number, because the mean of its divisors is an integer number (56208992).

Almost surely, 2^1145635188 is an apocalyptic number.

It is an amenable number.

1145635188 is an abundant number, since it is smaller than the sum of its proper divisors (1552396428).

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

1145635188 is a wasteful number, since it uses less digits than its factorization.

1145635188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1844 (or 1842 counting only the distinct ones).

The product of its digits is 115200, while the sum is 42.

The square root of 1145635188 is about 33847.2330922337. The cubic root of 1145635188 is about 1046.3623747039.

The spelling of 1145635188 in words is "one billion, one hundred forty-five million, six hundred thirty-five thousand, one hundred eighty-eight".