1157224 has 32 divisors (see below), whose sum is σ = 2350080. Its totient is φ = 532224.

The previous prime is 1157213. The next prime is 1157227. The reversal of 1157224 is 4227511.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1157195 and 1157204.

It is not an unprimeable number, because it can be changed into a prime (1157227) 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, 9049 + ... + 9175.

It is an arithmetic number, because the mean of its divisors is an integer number (73440).

2^1157224 is an apocalyptic number.

It is an amenable number.

1157224 is an abundant number, since it is smaller than the sum of its proper divisors (1192856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1157224 is a wasteful number, since it uses less digits than its factorization.

1157224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217 (or 213 counting only the distinct ones).

The product of its digits is 560, while the sum is 22.

The square root of 1157224 is about 1075.7434638426. The cubic root of 1157224 is about 104.9878746391.

The spelling of 1157224 in words is "one million, one hundred fifty-seven thousand, two hundred twenty-four".