1149818544 has 80 divisors (see below), whose sum is σ = 3771901440. Its totient is φ = 328518720.

The previous prime is 1149818531. The next prime is 1149818567. The reversal of 1149818544 is 4458189411.

1149818544 is a `hidden beast` number, since 1 + 1 + 4 + 98 + 18 + 544 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1149818544.

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, 187092 + ... + 193139.

It is an arithmetic number, because the mean of its divisors is an integer number (47148768).

Almost surely, 2^1149818544 is an apocalyptic number.

1149818544 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1149818544 is an abundant number, since it is smaller than the sum of its proper divisors (2622082896).

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

1149818544 is a wasteful number, since it uses less digits than its factorization.

1149818544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380255 (or 380243 counting only the distinct ones).

The product of its digits is 184320, while the sum is 45.

The square root of 1149818544 is about 33908.9743873211. The cubic root of 1149818544 is about 1047.6344460541.

The spelling of 1149818544 in words is "one billion, one hundred forty-nine million, eight hundred eighteen thousand, five hundred forty-four".