4151261 has 2 divisors, whose sum is σ = 4151262. Its totient is φ = 4151260.

The previous prime is 4151239. The next prime is 4151267. The reversal of 4151261 is 1621514.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3728761 + 422500 = 1931^2 + 650^2 .

It is a cyclic number.

It is not a de Polignac number, because 4151261 - 2⁶ = 4151197 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4151267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2075630 + 2075631.

It is an arithmetic number, because the mean of its divisors is an integer number (2075631).

Almost surely, 2^4151261 is an apocalyptic number.

It is an amenable number.

4151261 is a deficient number, since it is larger than the sum of its proper divisors (1).

4151261 is an equidigital number, since it uses as much as digits as its factorization.

4151261 is an odious number, because the sum of its binary digits is odd.

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

The square root of 4151261 is about 2037.4643555164. The cubic root of 4151261 is about 160.7163324090.

Adding to 4151261 its reverse (1621514), we get a palindrome (5772775).

The spelling of 4151261 in words is "four million, one hundred fifty-one thousand, two hundred sixty-one".