1522213 has 16 divisors (see below), whose sum is σ = 1938816. Its totient is φ = 1160640.

The previous prime is 1522201. The next prime is 1522249. The reversal of 1522213 is 3122251.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1522213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1522253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3895 + ... + 4267.

It is an arithmetic number, because the mean of its divisors is an integer number (121176).

2^1522213 is an apocalyptic number.

It is an amenable number.

1522213 is a deficient number, since it is larger than the sum of its proper divisors (416603).

1522213 is a wasteful number, since it uses less digits than its factorization.

1522213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444.

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

The square root of 1522213 is about 1233.7799641751. The cubic root of 1522213 is about 115.0337141228.

Adding to 1522213 its reverse (3122251), we get a palindrome (4644464).

The spelling of 1522213 in words is "one million, five hundred twenty-two thousand, two hundred thirteen".