2197522 has 8 divisors (see below), whose sum is σ = 3490236. Its totient is φ = 1034112.

The previous prime is 2197513. The next prime is 2197523. The reversal of 2197522 is 2257912.

2197522 is nontrivially palindromic in base 16.

It can be written as a sum of positive squares in 2 ways, for example, as 2134521 + 63001 = 1461^2 + 251^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2197523) 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, 32283 + ... + 32350.

2^2197522 is an apocalyptic number.

2197522 is a deficient number, since it is larger than the sum of its proper divisors (1292714).

2197522 is a wasteful number, since it uses less digits than its factorization.

2197522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64652.

The product of its digits is 2520, while the sum is 28.

The square root of 2197522 is about 1482.4041284346. The cubic root of 2197522 is about 130.0102950427.

The spelling of 2197522 in words is "two million, one hundred ninety-seven thousand, five hundred twenty-two".