1115042253 has 16 divisors (see below), whose sum is σ = 1609392960. Its totient is φ = 682619904.

The previous prime is 1115042221. The next prime is 1115042267. The reversal of 1115042253 is 3522405111.

It is a happy number.

It is not a de Polignac number, because 1115042253 - 2⁵ = 1115042221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115044253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66543 + ... + 81596.

It is an arithmetic number, because the mean of its divisors is an integer number (100587060).

Almost surely, 2^1115042253 is an apocalyptic number.

1115042253 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1115042253 is a deficient number, since it is larger than the sum of its proper divisors (494350707).

1115042253 is a wasteful number, since it uses less digits than its factorization.

1115042253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148348.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1115042253 is about 33392.2483968959. The cubic root of 1115042253 is about 1036.9642280988.

Adding to 1115042253 its reverse (3522405111), we get a palindrome (4637447364).

The spelling of 1115042253 in words is "one billion, one hundred fifteen million, forty-two thousand, two hundred fifty-three".