94509 has 6 divisors (see below), whose sum is σ = 136526. Its totient is φ = 63000.

The previous prime is 94483. The next prime is 94513. The reversal of 94509 is 90549.

94509 = 4⁷ + 5⁷.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 72900 + 21609 = 270^2 + 147^2 .

It is not a de Polignac number, because 94509 - 2⁵ = 94477 is a prime.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (94529) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5242 + ... + 5259.

2⁹⁴⁵⁰⁹ is an apocalyptic number.

It is an amenable number.

94509 is a deficient number, since it is larger than the sum of its proper divisors (42017).

94509 is a wasteful number, since it uses less digits than its factorization.

94509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10507 (or 10504 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 94509 is about 307.4231611314. The cubic root of 94509 is about 45.5502805270.

The spelling of 94509 in words is "ninety-four thousand, five hundred nine".