2528161 has 2 divisors, whose sum is σ = 2528162. Its totient is φ = 2528160.

The previous prime is 2528147. The next prime is 2528167. The reversal of 2528161 is 1618252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1577536 + 950625 = 1256^2 + 975^2 .

It is a cyclic number.

It is not a de Polignac number, because 2528161 - 2⁵ = 2528129 is a prime.

It is not a weakly prime, because it can be changed into another prime (2528167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1264080 + 1264081.

It is an arithmetic number, because the mean of its divisors is an integer number (1264081).

2^2528161 is an apocalyptic number.

It is an amenable number.

2528161 is a deficient number, since it is larger than the sum of its proper divisors (1).

2528161 is an equidigital number, since it uses as much as digits as its factorization.

2528161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 960, while the sum is 25.

The square root of 2528161 is about 1590.0191822742. The cubic root of 2528161 is about 136.2285840144.

Subtracting from 2528161 its reverse (1618252), we obtain a palindrome (909909).

The spelling of 2528161 in words is "two million, five hundred twenty-eight thousand, one hundred sixty-one".