1149536872 has 64 divisors (see below), whose sum is σ = 2597961600. Its totient is φ = 470384640.

The previous prime is 1149536867. The next prime is 1149536873. The reversal of 1149536872 is 2786359411.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (1149536873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17704 + ... + 51112.

It is an arithmetic number, because the mean of its divisors is an integer number (40593150).

Almost surely, 2^1149536872 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 1149536872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1298980800).

1149536872 is an abundant number, since it is smaller than the sum of its proper divisors (1448424728).

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

1149536872 is a wasteful number, since it uses less digits than its factorization.

1149536872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33466 (or 33462 counting only the distinct ones).

The product of its digits is 362880, while the sum is 46.

The square root of 1149536872 is about 33904.8207781725. The cubic root of 1149536872 is about 1047.5488924420.

The spelling of 1149536872 in words is "one billion, one hundred forty-nine million, five hundred thirty-six thousand, eight hundred seventy-two".