4178261 has 2 divisors, whose sum is σ = 4178262. Its totient is φ = 4178260.

The previous prime is 4178221. The next prime is 4178287. The reversal of 4178261 is 1628714.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2235025 + 1943236 = 1495^2 + 1394^2 .

It is a cyclic number.

It is not a de Polignac number, because 4178261 - 2⁶ = 4178197 is a prime.

It is a Chen prime.

It is a zygodrome in base 4.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4178221) 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 as a sum of consecutive naturals, namely, 2089130 + 2089131.

It is an arithmetic number, because the mean of its divisors is an integer number (2089131).

Almost surely, 2^4178261 is an apocalyptic number.

It is an amenable number.

4178261 is a deficient number, since it is larger than the sum of its proper divisors (1).

4178261 is an equidigital number, since it uses as much as digits as its factorization.

4178261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2688, while the sum is 29.

The square root of 4178261 is about 2044.0794994324. The cubic root of 4178261 is about 161.0640152827.

The spelling of 4178261 in words is "four million, one hundred seventy-eight thousand, two hundred sixty-one".