90075043 has 2 divisors, whose sum is σ = 90075044. Its totient is φ = 90075042.

The previous prime is 90074987. The next prime is 90075047. The reversal of 90075043 is 34057009.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90075043 - 2⁹ = 90074531 is a prime.

It is a super-2 number, since 2×90075043² = 16227026742903698, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (90075047) 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, 45037521 + 45037522.

It is an arithmetic number, because the mean of its divisors is an integer number (45037522).

Almost surely, 2^90075043 is an apocalyptic number.

90075043 is a deficient number, since it is larger than the sum of its proper divisors (1).

90075043 is an equidigital number, since it uses as much as digits as its factorization.

90075043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 90075043 is about 9490.7872697685. The cubic root of 90075043 is about 448.2649948890.

The spelling of 90075043 in words is "ninety million, seventy-five thousand, forty-three".