75945269 has 2 divisors, whose sum is σ = 75945270. Its totient is φ = 75945268.

The previous prime is 75945253. The next prime is 75945271. The reversal of 75945269 is 96254957.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75916369 + 28900 = 8713^2 + 170^2 .

It is a cyclic number.

It is not a de Polignac number, because 75945269 - 2⁴ = 75945253 is a prime.

It is a super-2 number, since 2×75945269² = 11535367766964722, which contains 22 as substring.

Together with 75945271, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75945209) 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, 37972634 + 37972635.

It is an arithmetic number, because the mean of its divisors is an integer number (37972635).

Almost surely, 2^75945269 is an apocalyptic number.

It is an amenable number.

75945269 is a deficient number, since it is larger than the sum of its proper divisors (1).

75945269 is an equidigital number, since it uses as much as digits as its factorization.

75945269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 680400, while the sum is 47.

The square root of 75945269 is about 8714.6582836047. The cubic root of 75945269 is about 423.4806538056.

The spelling of 75945269 in words is "seventy-five million, nine hundred forty-five thousand, two hundred sixty-nine".