4251161 has 2 divisors, whose sum is σ = 4251162. Its totient is φ = 4251160.

The previous prime is 4251157. The next prime is 4251199. The reversal of 4251161 is 1611524.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4227136 + 24025 = 2056^2 + 155^2 .

It is a cyclic number.

It is not a de Polignac number, because 4251161 - 2² = 4251157 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4251131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2125580 + 2125581.

It is an arithmetic number, because the mean of its divisors is an integer number (2125581).

Almost surely, 2^4251161 is an apocalyptic number.

It is an amenable number.

4251161 is a deficient number, since it is larger than the sum of its proper divisors (1).

4251161 is an equidigital number, since it uses as much as digits as its factorization.

4251161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 240, while the sum is 20.

The square root of 4251161 is about 2061.8343774416. The cubic root of 4251161 is about 161.9953384829.

Adding to 4251161 its reverse (1611524), we get a palindrome (5862685).

The spelling of 4251161 in words is "four million, two hundred fifty-one thousand, one hundred sixty-one".