1115230251 has 16 divisors (see below), whose sum is σ = 1567126400. Its totient is φ = 703505088.

The previous prime is 1115230231. The next prime is 1115230261. The reversal of 1115230251 is 1520325111.

It is not a de Polignac number, because 1115230251 - 2⁵ = 1115230219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1115230201) 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, 37575 + ... + 60351.

It is an arithmetic number, because the mean of its divisors is an integer number (97945400).

Almost surely, 2^1115230251 is an apocalyptic number.

1115230251 is a deficient number, since it is larger than the sum of its proper divisors (451896149).

1115230251 is a wasteful number, since it uses less digits than its factorization.

1115230251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23658.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 1115230251 is about 33395.0632728851. The cubic root of 1115230251 is about 1037.0225027951.

Adding to 1115230251 its reverse (1520325111), we get a palindrome (2635555362).

The spelling of 1115230251 in words is "one billion, one hundred fifteen million, two hundred thirty thousand, two hundred fifty-one".