75042469 has 2 divisors, whose sum is σ = 75042470. Its totient is φ = 75042468.

The previous prime is 75042449. The next prime is 75042497. The reversal of 75042469 is 96424057.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65044225 + 9998244 = 8065^2 + 3162^2 .

It is a cyclic number.

It is not a de Polignac number, because 75042469 - 2²⁵ = 41488037 is a prime.

It is a super-2 number, since 2×75042469² = 11262744307231922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75042449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37521234 + 37521235.

It is an arithmetic number, because the mean of its divisors is an integer number (37521235).

Almost surely, 2^75042469 is an apocalyptic number.

It is an amenable number.

75042469 is a deficient number, since it is larger than the sum of its proper divisors (1).

75042469 is an equidigital number, since it uses as much as digits as its factorization.

75042469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 75042469 is about 8662.7056396948. The cubic root of 75042469 is about 421.7959170575.

The spelling of 75042469 in words is "seventy-five million, forty-two thousand, four hundred sixty-nine".