1132555540 has 24 divisors (see below), whose sum is σ = 2383060680. Its totient is φ = 452128128.

The previous prime is 1132555537. The next prime is 1132555547. The reversal of 1132555540 is 455552311.

It can be written as a sum of positive squares in 4 ways, for example, as 382124304 + 750431236 = 19548^2 + 27394^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1132555547) 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, 45447 + ... + 65806.

It is an arithmetic number, because the mean of its divisors is an integer number (99294195).

Almost surely, 2^1132555540 is an apocalyptic number.

1132555540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1132555540 is an abundant number, since it is smaller than the sum of its proper divisors (1250505140).

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

1132555540 is a wasteful number, since it uses less digits than its factorization.

1132555540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111771 (or 111769 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 1132555540 is about 33653.4625261651. The cubic root of 1132555540 is about 1042.3650380142.

The spelling of 1132555540 in words is "one billion, one hundred thirty-two million, five hundred fifty-five thousand, five hundred forty".