1113253540 has 72 divisors (see below), whose sum is σ = 2737893312. Its totient is φ = 379108800.

The previous prime is 1113253507. The next prime is 1113253601. The reversal of 1113253540 is 453523111.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 144219 + ... + 151741.

It is an arithmetic number, because the mean of its divisors is an integer number (38026296).

Almost surely, 2^1113253540 is an apocalyptic number.

1113253540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1113253540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1368946656).

1113253540 is an abundant number, since it is smaller than the sum of its proper divisors (1624639772).

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

1113253540 is a wasteful number, since it uses less digits than its factorization.

1113253540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7697 (or 7688 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 1113253540 is about 33365.4542903285. The cubic root of 1113253540 is about 1036.4094437115.

Adding to 1113253540 its reverse (453523111), we get a palindrome (1566776651).

The spelling of 1113253540 in words is "one billion, one hundred thirteen million, two hundred fifty-three thousand, five hundred forty".