1135413553 has 4 divisors (see below), whose sum is σ = 1135499508. Its totient is φ = 1135327600.

The previous prime is 1135413551. The next prime is 1135413563. The reversal of 1135413553 is 3553145311.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3553145311 = 6917 ⋅513683.

It can be written as a sum of positive squares in 2 ways, for example, as 1043483809 + 91929744 = 32303^2 + 9588^2 .

It is a cyclic number.

It is not a de Polignac number, because 1135413553 - 2¹ = 1135413551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1135413551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18526 + ... + 51127.

It is an arithmetic number, because the mean of its divisors is an integer number (283874877).

Almost surely, 2^1135413553 is an apocalyptic number.

It is an amenable number.

1135413553 is a deficient number, since it is larger than the sum of its proper divisors (85955).

1135413553 is an equidigital number, since it uses as much as digits as its factorization.

1135413553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85954.

The product of its digits is 13500, while the sum is 31.

The square root of 1135413553 is about 33695.8981628328. The cubic root of 1135413553 is about 1043.2411070192.

Adding to 1135413553 its reverse (3553145311), we get a palindrome (4688558864).

The spelling of 1135413553 in words is "one billion, one hundred thirty-five million, four hundred thirteen thousand, five hundred fifty-three".