1156216 has 16 divisors (see below), whose sum is σ = 2188800. Its totient is φ = 572544.

The previous prime is 1156171. The next prime is 1156217. The reversal of 1156216 is 6126511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1156217) 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, 265 + ... + 1543.

It is an arithmetic number, because the mean of its divisors is an integer number (136800).

2^1156216 is an apocalyptic number.

It is an amenable number.

1156216 is a deficient number, since it is larger than the sum of its proper divisors (1032584).

1156216 is a wasteful number, since it uses less digits than its factorization.

1156216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1398 (or 1394 counting only the distinct ones).

The product of its digits is 360, while the sum is 22.

The square root of 1156216 is about 1075.2748485852. The cubic root of 1156216 is about 104.9573825536.

The spelling of 1156216 in words is "one million, one hundred fifty-six thousand, two hundred sixteen".