43252091 has 2 divisors, whose sum is σ = 43252092. Its totient is φ = 43252090.

The previous prime is 43252067. The next prime is 43252103. The reversal of 43252091 is 19025234.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43252091 - 2¹⁰ = 43251067 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43252091.

It is not a weakly prime, because it can be changed into another prime (43252691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21626045 + 21626046.

It is an arithmetic number, because the mean of its divisors is an integer number (21626046).

Almost surely, 2^43252091 is an apocalyptic number.

43252091 is a deficient number, since it is larger than the sum of its proper divisors (1).

43252091 is an equidigital number, since it uses as much as digits as its factorization.

43252091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 43252091 is about 6576.6321928476. The cubic root of 43252091 is about 351.0231043522.

The spelling of 43252091 in words is "forty-three million, two hundred fifty-two thousand, ninety-one".