1135532253 has 4 divisors (see below), whose sum is σ = 1514043008. Its totient is φ = 757021500.

The previous prime is 1135532191. The next prime is 1135532297. The reversal of 1135532253 is 3522355311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3522355311 = 3 ⋅1174118437.

It is not a de Polignac number, because 1135532253 - 2⁹ = 1135531741 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 1135532253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1135532753) 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, 189255373 + ... + 189255378.

It is an arithmetic number, because the mean of its divisors is an integer number (378510752).

Almost surely, 2^1135532253 is an apocalyptic number.

It is an amenable number.

1135532253 is a deficient number, since it is larger than the sum of its proper divisors (378510755).

1135532253 is an equidigital number, since it uses as much as digits as its factorization.

1135532253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378510754.

The product of its digits is 13500, while the sum is 30.

The square root of 1135532253 is about 33697.6594587814. The cubic root of 1135532253 is about 1043.2774604119.

Adding to 1135532253 its reverse (3522355311), we get a palindrome (4657887564).

The spelling of 1135532253 in words is "one billion, one hundred thirty-five million, five hundred thirty-two thousand, two hundred fifty-three".