4494509 has 2 divisors, whose sum is σ = 4494510. Its totient is φ = 4494508.

The previous prime is 4494491. The next prime is 4494517. The reversal of 4494509 is 9054944.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3433609 + 1060900 = 1853^2 + 1030^2 .

It is a cyclic number.

It is not a de Polignac number, because 4494509 - 2²⁰ = 3445933 is a prime.

It is a super-2 number, since 2×4494509² = 40401222302162, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4494209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2247254 + 2247255.

It is an arithmetic number, because the mean of its divisors is an integer number (2247255).

Almost surely, 2^4494509 is an apocalyptic number.

It is an amenable number.

4494509 is a deficient number, since it is larger than the sum of its proper divisors (1).

4494509 is an equidigital number, since it uses as much as digits as its factorization.

4494509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 4494509 is about 2120.0257073913. The cubic root of 4494509 is about 165.0291836962.

The spelling of 4494509 in words is "four million, four hundred ninety-four thousand, five hundred nine".