1131652660 has 24 divisors (see below), whose sum is σ = 2379625416. Its totient is φ = 452060160.

The previous prime is 1131652591. The next prime is 1131652667. The reversal of 1131652660 is 662561311.

It can be written as a sum of positive squares in 4 ways, for example, as 7257636 + 1124395024 = 2694^2 + 33532^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131652667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21957 + ... + 52396.

It is an arithmetic number, because the mean of its divisors is an integer number (99151059).

Almost surely, 2^1131652660 is an apocalyptic number.

1131652660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131652660 is an abundant number, since it is smaller than the sum of its proper divisors (1247972756).

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

1131652660 is a wasteful number, since it uses less digits than its factorization.

1131652660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75123 (or 75121 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 1131652660 is about 33640.0454815388. The cubic root of 1131652660 is about 1042.0879711759.

The spelling of 1131652660 in words is "one billion, one hundred thirty-one million, six hundred fifty-two thousand, six hundred sixty".