9045409 has 2 divisors, whose sum is σ = 9045410. Its totient is φ = 9045408.

The previous prime is 9045391. The next prime is 9045431.

It is a happy number.

9045409 is nontrivially palindromic in base 10.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4635409 + 4410000 = 2153^2 + 2100^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 9045409 - 2¹¹ = 9043361 is a prime.

It is not a weakly prime, because it can be changed into another prime (9045209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4522704 + 4522705.

It is an arithmetic number, because the mean of its divisors is an integer number (4522705).

Almost surely, 2^9045409 is an apocalyptic number.

It is an amenable number.

9045409 is a deficient number, since it is larger than the sum of its proper divisors (1).

9045409 is an equidigital number, since it uses as much as digits as its factorization.

9045409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 9045409 is about 3007.5586444823. The cubic root of 9045409 is about 208.3576271759.

The spelling of 9045409 in words is "nine million, forty-five thousand, four hundred nine".