1113645533 has 32 divisors (see below), whose sum is σ = 1560287232. Its totient is φ = 766180800.

The previous prime is 1113645523. The next prime is 1113645539. The reversal of 1113645533 is 3355463111.

It is not a de Polignac number, because 1113645533 - 2¹⁶ = 1113579997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1113645533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113645539) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1163 + ... + 47208.

It is an arithmetic number, because the mean of its divisors is an integer number (48758976).

Almost surely, 2^1113645533 is an apocalyptic number.

1113645533 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1113645533 is a deficient number, since it is larger than the sum of its proper divisors (446641699).

1113645533 is a wasteful number, since it uses less digits than its factorization.

1113645533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48425.

The product of its digits is 16200, while the sum is 32.

The square root of 1113645533 is about 33371.3280077374. The cubic root of 1113645533 is about 1036.5310744565.

It can be divided in two parts, 1113 and 645533, that added together give a palindrome (646646).

The spelling of 1113645533 in words is "one billion, one hundred thirteen million, six hundred forty-five thousand, five hundred thirty-three".