45434209 has 2 divisors, whose sum is σ = 45434210. Its totient is φ = 45434208.

The previous prime is 45434167. The next prime is 45434231. The reversal of 45434209 is 90243454.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45360225 + 73984 = 6735^2 + 272^2 .

It is a cyclic number.

It is not a de Polignac number, because 45434209 - 2⁹ = 45433697 is a prime.

It is a Chen prime.

It is equal to p_2742916 and since 45434209 and 2742916 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (45434299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22717104 + 22717105.

It is an arithmetic number, because the mean of its divisors is an integer number (22717105).

Almost surely, 2^45434209 is an apocalyptic number.

It is an amenable number.

45434209 is a deficient number, since it is larger than the sum of its proper divisors (1).

45434209 is an equidigital number, since it uses as much as digits as its factorization.

45434209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 45434209 is about 6740.4902640683. The cubic root of 45434209 is about 356.8296964339.

The spelling of 45434209 in words is "forty-five million, four hundred thirty-four thousand, two hundred nine".