45546169 has 2 divisors, whose sum is σ = 45546170. Its totient is φ = 45546168.

The previous prime is 45546143. The next prime is 45546197. The reversal of 45546169 is 96164554.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40793769 + 4752400 = 6387^2 + 2180^2 .

It is a cyclic number.

It is not a de Polignac number, because 45546169 - 2⁷ = 45546041 is a prime.

It is a super-2 number, since 2×45546169² = 4148907021153122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (45546139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22773084 + 22773085.

It is an arithmetic number, because the mean of its divisors is an integer number (22773085).

Almost surely, 2^45546169 is an apocalyptic number.

It is an amenable number.

45546169 is a deficient number, since it is larger than the sum of its proper divisors (1).

45546169 is an equidigital number, since it uses as much as digits as its factorization.

45546169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129600, while the sum is 40.

The square root of 45546169 is about 6748.7901878781. The cubic root of 45546169 is about 357.1225585949.

The spelling of 45546169 in words is "forty-five million, five hundred forty-six thousand, one hundred sixty-nine".