4312291 has 2 divisors, whose sum is σ = 4312292. Its totient is φ = 4312290.

The previous prime is 4312283. The next prime is 4312309. The reversal of 4312291 is 1922134.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4312291 - 2³ = 4312283 is a prime.

It is not a weakly prime, because it can be changed into another prime (4312261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2156145 + 2156146.

It is an arithmetic number, because the mean of its divisors is an integer number (2156146).

Almost surely, 2^4312291 is an apocalyptic number.

4312291 is a deficient number, since it is larger than the sum of its proper divisors (1).

4312291 is an equidigital number, since it uses as much as digits as its factorization.

4312291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 22.

The square root of 4312291 is about 2076.6056438332. The cubic root of 4312291 is about 162.7681222510.

The spelling of 4312291 in words is "four million, three hundred twelve thousand, two hundred ninety-one".