4312261 has 2 divisors, whose sum is σ = 4312262. Its totient is φ = 4312260.

The previous prime is 4312229. The next prime is 4312267. The reversal of 4312261 is 1622134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3261636 + 1050625 = 1806^2 + 1025^2 .

It is a cyclic number.

It is not a de Polignac number, because 4312261 - 2⁵ = 4312229 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4312267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2156130 + 2156131.

It is an arithmetic number, because the mean of its divisors is an integer number (2156131).

Almost surely, 2^4312261 is an apocalyptic number.

It is an amenable number.

4312261 is a deficient number, since it is larger than the sum of its proper divisors (1).

4312261 is an equidigital number, since it uses as much as digits as its factorization.

4312261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288, while the sum is 19.

The square root of 4312261 is about 2076.5984204944. The cubic root of 4312261 is about 162.7677447985.

Adding to 4312261 its reverse (1622134), we get a palindrome (5934395).

The spelling of 4312261 in words is "four million, three hundred twelve thousand, two hundred sixty-one".