75045869 has 4 divisors (see below), whose sum is σ = 75089340. Its totient is φ = 75002400.

The previous prime is 75045857. The next prime is 75045911. The reversal of 75045869 is 96854057.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10484644 + 64561225 = 3238^2 + 8035^2 .

It is a cyclic number.

It is not a de Polignac number, because 75045869 - 2⁴ = 75045853 is a prime.

It is a super-2 number, since 2×75045869² = 11263764907930322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75045809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19034 + ... + 22635.

It is an arithmetic number, because the mean of its divisors is an integer number (18772335).

Almost surely, 2^75045869 is an apocalyptic number.

It is an amenable number.

75045869 is a deficient number, since it is larger than the sum of its proper divisors (43471).

75045869 is a wasteful number, since it uses less digits than its factorization.

75045869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43470.

The product of its (nonzero) digits is 302400, while the sum is 44.

The square root of 75045869 is about 8662.9018810096. The cubic root of 75045869 is about 421.8022871591.

The spelling of 75045869 in words is "seventy-five million, forty-five thousand, eight hundred sixty-nine".