1144665132 has 48 divisors (see below), whose sum is σ = 2879036160. Its totient is φ = 351874368.

The previous prime is 1144665121. The next prime is 1144665133. The reversal of 1144665132 is 2315664411.

It is a junction number, because it is equal to n+sod(n) for n = 1144665093 and 1144665102.

It is not an unprimeable number, because it can be changed into a prime (1144665133) 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, 202983 + ... + 208545.

It is an arithmetic number, because the mean of its divisors is an integer number (59979920).

Almost surely, 2^1144665132 is an apocalyptic number.

1144665132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1144665132 is an abundant number, since it is smaller than the sum of its proper divisors (1734371028).

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

1144665132 is a wasteful number, since it uses less digits than its factorization.

1144665132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6902 (or 6900 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 1144665132 is about 33832.9001417260. The cubic root of 1144665132 is about 1046.0669587535.

The spelling of 1144665132 in words is "one billion, one hundred forty-four million, six hundred sixty-five thousand, one hundred thirty-two".