75243433 has 2 divisors, whose sum is σ = 75243434. Its totient is φ = 75243432.

The previous prime is 75243431. The next prime is 75243461. The reversal of 75243433 is 33434257.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70761744 + 4481689 = 8412^2 + 2117^2 .

It is a cyclic number.

It is not a de Polignac number, because 75243433 - 2¹ = 75243431 is a prime.

Together with 75243431, it forms a pair of twin primes.

It is equal to p_4407772 and since 75243433 and 4407772 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 75243395 and 75243404.

It is not a weakly prime, because it can be changed into another prime (75243431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37621716 + 37621717.

It is an arithmetic number, because the mean of its divisors is an integer number (37621717).

Almost surely, 2^75243433 is an apocalyptic number.

It is an amenable number.

75243433 is a deficient number, since it is larger than the sum of its proper divisors (1).

75243433 is an equidigital number, since it uses as much as digits as its factorization.

75243433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 31.

The square root of 75243433 is about 8674.2972626029. The cubic root of 75243433 is about 422.1721051035.

The spelling of 75243433 in words is "seventy-five million, two hundred forty-three thousand, four hundred thirty-three".