1155600540 has 48 divisors (see below), whose sum is σ = 3595203360. Its totient is φ = 308160000.

The previous prime is 1155600529. The next prime is 1155600583. The reversal of 1155600540 is 450065511.

It is a happy number.

1155600540 is a `hidden beast` number, since 1 + 1 + 5 + 5 + 600 + 54 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1069461 + ... + 1070540.

It is an arithmetic number, because the mean of its divisors is an integer number (74900070).

Almost surely, 2^1155600540 is an apocalyptic number.

1155600540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1155600540 is an abundant number, since it is smaller than the sum of its proper divisors (2439602820).

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

1155600540 is a wasteful number, since it uses less digits than its factorization.

1155600540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2140019 (or 2140011 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 1155600540 is about 33994.1250806665. The cubic root of 1155600540 is about 1049.3875612165.

The spelling of 1155600540 in words is "one billion, one hundred fifty-five million, six hundred thousand, five hundred forty".