43367081 has 2 divisors, whose sum is σ = 43367082. Its totient is φ = 43367080.

The previous prime is 43367069. The next prime is 43367083. The reversal of 43367081 is 18076334.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42367081 + 1000000 = 6509^2 + 1000^2 .

It is a cyclic number.

It is not a de Polignac number, because 43367081 - 2¹⁸ = 43104937 is a prime.

It is a super-2 number, since 2×43367081² = 3761407428921122, which contains 22 as substring.

Together with 43367083, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (43367083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21683540 + 21683541.

It is an arithmetic number, because the mean of its divisors is an integer number (21683541).

Almost surely, 2^43367081 is an apocalyptic number.

It is an amenable number.

43367081 is a deficient number, since it is larger than the sum of its proper divisors (1).

43367081 is an equidigital number, since it uses as much as digits as its factorization.

43367081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 43367081 is about 6585.3687064583. The cubic root of 43367081 is about 351.3339057329. Note that the first 3 decimals are identical.

The spelling of 43367081 in words is "forty-three million, three hundred sixty-seven thousand, eighty-one".