4198261 has 2 divisors, whose sum is σ = 4198262. Its totient is φ = 4198260.

The previous prime is 4198247. The next prime is 4198307. The reversal of 4198261 is 1628914.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3186225 + 1012036 = 1785^2 + 1006^2 .

It is a cyclic number.

It is not a de Polignac number, because 4198261 - 2⁹ = 4197749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4198211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2099130 + 2099131.

It is an arithmetic number, because the mean of its divisors is an integer number (2099131).

Almost surely, 2^4198261 is an apocalyptic number.

It is an amenable number.

4198261 is a deficient number, since it is larger than the sum of its proper divisors (1).

4198261 is an equidigital number, since it uses as much as digits as its factorization.

4198261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 31.

The square root of 4198261 is about 2048.9658367089. The cubic root of 4198261 is about 161.3205936521.

The spelling of 4198261 in words is "four million, one hundred ninety-eight thousand, two hundred sixty-one".