43234091 has 2 divisors, whose sum is σ = 43234092. Its totient is φ = 43234090.

The previous prime is 43234073. The next prime is 43234133. The reversal of 43234091 is 19043234.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43234091 - 2¹⁸ = 42971947 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43234091.

It is not a weakly prime, because it can be changed into another prime (43234021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21617045 + 21617046.

It is an arithmetic number, because the mean of its divisors is an integer number (21617046).

Almost surely, 2^43234091 is an apocalyptic number.

43234091 is a deficient number, since it is larger than the sum of its proper divisors (1).

43234091 is an equidigital number, since it uses as much as digits as its factorization.

43234091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 43234091 is about 6575.2635688617. The cubic root of 43234091 is about 350.9744031030.

The spelling of 43234091 in words is "forty-three million, two hundred thirty-four thousand, ninety-one".