1215223 has 8 divisors (see below), whose sum is σ = 1267200. Its totient is φ = 1164408.

The previous prime is 1215209. The next prime is 1215229. The reversal of 1215223 is 3225121.

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 1215223 - 2⁹ = 1214711 is a prime.

It is a Duffinian number.

1215223 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1215197 and 1215206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1215229) 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, 2298 + ... + 2776.

It is an arithmetic number, because the mean of its divisors is an integer number (158400).

2^1215223 is an apocalyptic number.

1215223 is a deficient number, since it is larger than the sum of its proper divisors (51977).

1215223 is an equidigital number, since it uses as much as digits as its factorization.

1215223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581.

The product of its digits is 120, while the sum is 16.

The square root of 1215223 is about 1102.3715344656. The cubic root of 1215223 is about 106.7133270251.

The spelling of 1215223 in words is "one million, two hundred fifteen thousand, two hundred twenty-three".