75133609 has 8 divisors (see below), whose sum is σ = 76998240. Its totient is φ = 73288800.

The previous prime is 75133603. The next prime is 75133621. The reversal of 75133609 is 90633157.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 75133609 - 2¹⁷ = 75002537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75133603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2869 + ... + 12589.

It is an arithmetic number, because the mean of its divisors is an integer number (9624780).

Almost surely, 2^75133609 is an apocalyptic number.

It is an amenable number.

75133609 is a deficient number, since it is larger than the sum of its proper divisors (1864631).

75133609 is a wasteful number, since it uses less digits than its factorization.

75133609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9911.

The product of its (nonzero) digits is 17010, while the sum is 34.

The square root of 75133609 is about 8667.9645246159. The cubic root of 75133609 is about 421.9666067480.

The spelling of 75133609 in words is "seventy-five million, one hundred thirty-three thousand, six hundred nine".