1121136253 has 8 divisors (see below), whose sum is σ = 1124820216. Its totient is φ = 1117459200.

The previous prime is 1121136239. The next prime is 1121136257. The reversal of 1121136253 is 3526311211.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 316733209 + 804403044 = 17797^2 + 28362^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1121136253 - 2²¹ = 1119039101 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 (1121136257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 756273 + ... + 757753.

It is an arithmetic number, because the mean of its divisors is an integer number (140602527).

Almost surely, 2^1121136253 is an apocalyptic number.

It is an amenable number.

1121136253 is a deficient number, since it is larger than the sum of its proper divisors (3683963).

1121136253 is a wasteful number, since it uses less digits than its factorization.

1121136253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3455.

The product of its digits is 1080, while the sum is 25.

The square root of 1121136253 is about 33483.3727841148. The cubic root of 1121136253 is about 1038.8498913775.

Adding to 1121136253 its reverse (3526311211), we get a palindrome (4647447464).

The spelling of 1121136253 in words is "one billion, one hundred twenty-one million, one hundred thirty-six thousand, two hundred fifty-three".