1149525636 has 48 divisors (see below), whose sum is σ = 3068943360. Its totient is φ = 328056480.

The previous prime is 1149525623. The next prime is 1149525659. The reversal of 1149525636 is 6365259411.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69751 + ... + 84641.

It is an arithmetic number, because the mean of its divisors is an integer number (63936320).

Almost surely, 2^1149525636 is an apocalyptic number.

It is an amenable number.

1149525636 is an abundant number, since it is smaller than the sum of its proper divisors (1919417724).

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

1149525636 is a wasteful number, since it uses less digits than its factorization.

1149525636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15824 (or 15822 counting only the distinct ones).

The product of its digits is 194400, while the sum is 42.

The square root of 1149525636 is about 33904.6550786172. The cubic root of 1149525636 is about 1047.5454793870.

The spelling of 1149525636 in words is "one billion, one hundred forty-nine million, five hundred twenty-five thousand, six hundred thirty-six".