2142522 has 24 divisors (see below), whose sum is σ = 4769076. Its totient is φ = 694656.

The previous prime is 2142521. The next prime is 2142523. The reversal of 2142522 is 2252412.

2142522 is a `hidden beast` number, since 2 + 142 + 522 = 666.

It is an interprime number because it is at equal distance from previous prime (2142521) and next prime (2142523).

It can be written as a sum of positive squares in 2 ways, for example, as 1718721 + 423801 = 1311^2 + 651^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a plaindrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 2142495 and 2142504.

It is not an unprimeable number, because it can be changed into a prime (2142521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 943 + ... + 2274.

2^2142522 is an apocalyptic number.

2142522 is an abundant number, since it is smaller than the sum of its proper divisors (2626554).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2142522 is a wasteful number, since it uses less digits than its factorization.

2142522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3262 (or 3259 counting only the distinct ones).

The product of its digits is 320, while the sum is 18.

The square root of 2142522 is about 1463.7356318680. The cubic root of 2142522 is about 128.9164773924.

Adding to 2142522 its reverse (2252412), we get a palindrome (4394934).

The spelling of 2142522 in words is "two million, one hundred forty-two thousand, five hundred twenty-two".