43275481 has 2 divisors, whose sum is σ = 43275482. Its totient is φ = 43275480.

The previous prime is 43275461. The next prime is 43275487. The reversal of 43275481 is 18457234.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28259856 + 15015625 = 5316^2 + 3875^2 .

It is a cyclic number.

It is not a de Polignac number, because 43275481 - 2⁹ = 43274969 is a prime.

It is a super-2 number, since 2×43275481² = 3745534511562722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (43275487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21637740 + 21637741.

It is an arithmetic number, because the mean of its divisors is an integer number (21637741).

Almost surely, 2^43275481 is an apocalyptic number.

It is an amenable number.

43275481 is a deficient number, since it is larger than the sum of its proper divisors (1).

43275481 is an equidigital number, since it uses as much as digits as its factorization.

43275481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26880, while the sum is 34.

The square root of 43275481 is about 6578.4102182822. The cubic root of 43275481 is about 351.0863687374.

The spelling of 43275481 in words is "forty-three million, two hundred seventy-five thousand, four hundred eighty-one".