1215422 has 8 divisors (see below), whose sum is σ = 1963416. Its totient is φ = 560952.

The previous prime is 1215421. The next prime is 1215433. The reversal of 1215422 is 2245121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 1215422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1215421) 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, 23348 + ... + 23399.

It is an arithmetic number, because the mean of its divisors is an integer number (245427).

2^1215422 is an apocalyptic number.

1215422 is a deficient number, since it is larger than the sum of its proper divisors (747994).

1215422 is a wasteful number, since it uses less digits than its factorization.

1215422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46762.

The product of its digits is 160, while the sum is 17.

The square root of 1215422 is about 1102.4617907211. The cubic root of 1215422 is about 106.7191516880.

The spelling of 1215422 in words is "one million, two hundred fifteen thousand, four hundred twenty-two".