1135613453 has 4 divisors (see below), whose sum is σ = 1222968348. Its totient is φ = 1048258560.

The previous prime is 1135613443. The next prime is 1135613461. The reversal of 1135613453 is 3543165311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3543165311 = 7 ⋅506166473.

It can be written as a sum of positive squares in 2 ways, for example, as 75655204 + 1059958249 = 8698^2 + 32557^2 .

It is a cyclic number.

It is not a de Polignac number, because 1135613453 - 2⁸ = 1135613197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1135613443) 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, 43677428 + ... + 43677453.

It is an arithmetic number, because the mean of its divisors is an integer number (305742087).

Almost surely, 2^1135613453 is an apocalyptic number.

1135613453 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1135613453 is a deficient number, since it is larger than the sum of its proper divisors (87354895).

1135613453 is an equidigital number, since it uses as much as digits as its factorization.

1135613453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87354894.

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

The square root of 1135613453 is about 33698.8642686961. The cubic root of 1135613453 is about 1043.3023274909.

Adding to 1135613453 its reverse (3543165311), we get a palindrome (4678778764).

The spelling of 1135613453 in words is "one billion, one hundred thirty-five million, six hundred thirteen thousand, four hundred fifty-three".