1115231 has 6 divisors (see below), whose sum is σ = 1207800. Its totient is φ = 1029288.

The previous prime is 1115227. The next prime is 1115237. The reversal of 1115231 is 1325111.

It is not a de Polignac number, because 1115231 - 2² = 1115227 is a prime.

It is a super-2 number, since 2×1115231² = 2487480366722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115237) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3131 + ... + 3468.

It is an arithmetic number, because the mean of its divisors is an integer number (201300).

2^1115231 is an apocalyptic number.

1115231 is a deficient number, since it is larger than the sum of its proper divisors (92569).

1115231 is an equidigital number, since it uses as much as digits as its factorization.

1115231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6625 (or 6612 counting only the distinct ones).

The product of its digits is 30, while the sum is 14.

The square root of 1115231 is about 1056.0449801026. The cubic root of 1115231 is about 103.7022734953.

The spelling of 1115231 in words is "one million, one hundred fifteen thousand, two hundred thirty-one".