2025161 has 4 divisors (see below), whose sum is σ = 2031252. Its totient is φ = 2019072.

The previous prime is 2025131. The next prime is 2025169. The reversal of 2025161 is 1615202.

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

It can be written as a sum of positive squares in 2 ways, for example, as 295936 + 1729225 = 544^2 + 1315^2 .

It is a cyclic number.

It is not a de Polignac number, because 2025161 - 2¹⁴ = 2008777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2025169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2516 + ... + 3221.

It is an arithmetic number, because the mean of its divisors is an integer number (507813).

2^2025161 is an apocalyptic number.

It is an amenable number.

2025161 is a deficient number, since it is larger than the sum of its proper divisors (6091).

2025161 is an equidigital number, since it uses as much as digits as its factorization.

2025161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6090.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 2025161 is about 1423.0815155851. The cubic root of 2025161 is about 126.5182526116.

The spelling of 2025161 in words is "two million, twenty-five thousand, one hundred sixty-one".