1113253541 has 4 divisors (see below), whose sum is σ = 1117392300. Its totient is φ = 1109114784.

The previous prime is 1113253507. The next prime is 1113253601. The reversal of 1113253541 is 1453523111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1453523111 = 23 ⋅63196657.

It can be written as a sum of positive squares in 2 ways, for example, as 443944900 + 669308641 = 21070^2 + 25871^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1113253541 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1113253541.

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 3 ways as a sum of consecutive naturals, for example, 2068976 + ... + 2069513.

It is an arithmetic number, because the mean of its divisors is an integer number (279348075).

Almost surely, 2^1113253541 is an apocalyptic number.

It is an amenable number.

1113253541 is a deficient number, since it is larger than the sum of its proper divisors (4138759).

1113253541 is an equidigital number, since it uses as much as digits as its factorization.

1113253541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4138758.

The product of its digits is 1800, while the sum is 26.

The square root of 1113253541 is about 33365.4543053141. The cubic root of 1113253541 is about 1036.4094440218.

Adding to 1113253541 its reverse (1453523111), we get a palindrome (2566776652).

The spelling of 1113253541 in words is "one billion, one hundred thirteen million, two hundred fifty-three thousand, five hundred forty-one".