43081807 has 2 divisors, whose sum is σ = 43081808. Its totient is φ = 43081806.

The previous prime is 43081747. The next prime is 43081817. The reversal of 43081807 is 70818034.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43081807 - 2⁷ = 43081679 is a prime.

It is a Chen prime.

It is a plaindrome in base 11.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43081817) 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, 21540903 + 21540904.

It is an arithmetic number, because the mean of its divisors is an integer number (21540904).

Almost surely, 2^43081807 is an apocalyptic number.

43081807 is a deficient number, since it is larger than the sum of its proper divisors (1).

43081807 is an equidigital number, since it uses as much as digits as its factorization.

43081807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 43081807 is about 6563.6732855925. The cubic root of 43081807 is about 350.5618377630.

The spelling of 43081807 in words is "forty-three million, eighty-one thousand, eight hundred seven".