1115243 has 8 divisors (see below), whose sum is σ = 1190400. Its totient is φ = 1041768.

The previous prime is 1115239. The next prime is 1115267. The reversal of 1115243 is 3425111.

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 1115243 - 2² = 1115239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1115273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1130 + ... + 1872.

It is an arithmetic number, because the mean of its divisors is an integer number (148800).

2^1115243 is an apocalyptic number.

1115243 is a deficient number, since it is larger than the sum of its proper divisors (75157).

1115243 is an equidigital number, since it uses as much as digits as its factorization.

1115243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841.

The product of its digits is 120, while the sum is 17.

The square root of 1115243 is about 1056.0506616635. The cubic root of 1115243 is about 103.7026454430.

The spelling of 1115243 in words is "one million, one hundred fifteen thousand, two hundred forty-three".