1113255540 has 72 divisors (see below), whose sum is σ = 3575524680. Its totient is φ = 279404544.

The previous prime is 1113255529. The next prime is 1113255541. The reversal of 1113255540 is 455523111.

1113255540 is a `hidden beast` number, since 1 + 113 + 2 + 5 + 5 + 540 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 7160976 + 1106094564 = 2676^2 + 33258^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113255541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 178845 + ... + 184964.

It is an arithmetic number, because the mean of its divisors is an integer number (49660065).

Almost surely, 2^1113255540 is an apocalyptic number.

1113255540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1113255540 is an abundant number, since it is smaller than the sum of its proper divisors (2462269140).

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

1113255540 is a wasteful number, since it uses less digits than its factorization.

1113255540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363841 (or 363836 counting only the distinct ones).

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

The square root of 1113255540 is about 33365.4842614340. The cubic root of 1113255540 is about 1036.4100643601.

Adding to 1113255540 its reverse (455523111), we get a palindrome (1568778651).

The spelling of 1113255540 in words is "one billion, one hundred thirteen million, two hundred fifty-five thousand, five hundred forty".