2528122 has 4 divisors (see below), whose sum is σ = 3792186. Its totient is φ = 1264060.

The previous prime is 2528077. The next prime is 2528129. The reversal of 2528122 is 2218252.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2499561 + 28561 = 1581^2 + 169^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 2528093 and 2528102.

It is not an unprimeable number, because it can be changed into a prime (2528129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 632029 + ... + 632032.

2^2528122 is an apocalyptic number.

2528122 is a deficient number, since it is larger than the sum of its proper divisors (1264064).

2528122 is a wasteful number, since it uses less digits than its factorization.

2528122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1264063.

The product of its digits is 640, while the sum is 22.

The square root of 2528122 is about 1590.0069182239. The cubic root of 2528122 is about 136.2278835128.

Subtracting from 2528122 its sum of digits (22), we obtain a square (2528100 = 1590²).

The spelling of 2528122 in words is "two million, five hundred twenty-eight thousand, one hundred twenty-two".