1522215 has 12 divisors (see below), whose sum is σ = 2638584. Its totient is φ = 811824.

The previous prime is 1522201. The next prime is 1522249. The reversal of 1522215 is 5122251.

It is not a de Polignac number, because 1522215 - 2¹⁴ = 1505831 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16869 + ... + 16958.

It is an arithmetic number, because the mean of its divisors is an integer number (219882).

2^1522215 is an apocalyptic number.

1522215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1522215 is a deficient number, since it is larger than the sum of its proper divisors (1116369).

1522215 is a wasteful number, since it uses less digits than its factorization.

1522215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33838 (or 33835 counting only the distinct ones).

The product of its digits is 200, while the sum is 18.

The square root of 1522215 is about 1233.7807746922. The cubic root of 1522215 is about 115.0337645028.

Adding to 1522215 its reverse (5122251), we get a palindrome (6644466).

The spelling of 1522215 in words is "one million, five hundred twenty-two thousand, two hundred fifteen".