1156223 has 4 divisors (see below), whose sum is σ = 1175880. Its totient is φ = 1136568.

The previous prime is 1156217. The next prime is 1156229. The reversal of 1156223 is 3226511.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1156217) and next prime (1156229).

It is a cyclic number.

It is not a de Polignac number, because 1156223 - 2⁸ = 1155967 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1156195 and 1156204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1156229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9740 + ... + 9857.

It is an arithmetic number, because the mean of its divisors is an integer number (293970).

2^1156223 is an apocalyptic number.

1156223 is a deficient number, since it is larger than the sum of its proper divisors (19657).

1156223 is an equidigital number, since it uses as much as digits as its factorization.

1156223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19656.

The product of its digits is 360, while the sum is 20.

The square root of 1156223 is about 1075.2781035621. The cubic root of 1156223 is about 104.9575943653.

The spelling of 1156223 in words is "one million, one hundred fifty-six thousand, two hundred twenty-three".