1149289632 has 72 divisors (see below), whose sum is σ = 3440324160. Its totient is φ = 362931840.

The previous prime is 1149289579. The next prime is 1149289643. The reversal of 1149289632 is 2369829411.

1149289632 is a `hidden beast` number, since 1 + 1 + 4 + 9 + 2 + 8 + 9 + 632 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99544 + ... + 110487.

It is an arithmetic number, because the mean of its divisors is an integer number (47782280).

Almost surely, 2^1149289632 is an apocalyptic number.

1149289632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1149289632 is an abundant number, since it is smaller than the sum of its proper divisors (2291034528).

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

1149289632 is a wasteful number, since it uses less digits than its factorization.

1149289632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210066 (or 210055 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 1149289632 is about 33901.1744929287. The cubic root of 1149289632 is about 1047.4737855114.

It can be divided in two parts, 11492 and 89632, that added together give a square (101124 = 318²).

The spelling of 1149289632 in words is "one billion, one hundred forty-nine million, two hundred eighty-nine thousand, six hundred thirty-two".