45445069 has 2 divisors, whose sum is σ = 45445070. Its totient is φ = 45445068.

The previous prime is 45445067. The next prime is 45445087. The reversal of 45445069 is 96054454.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39501225 + 5943844 = 6285^2 + 2438^2 .

It is a cyclic number.

It is not a de Polignac number, because 45445069 - 2¹ = 45445067 is a prime.

It is a super-2 number, since 2×45445069² = 4130508592829522, which contains 22 as substring.

Together with 45445067, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45445067) 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, 22722534 + 22722535.

It is an arithmetic number, because the mean of its divisors is an integer number (22722535).

Almost surely, 2^45445069 is an apocalyptic number.

It is an amenable number.

45445069 is a deficient number, since it is larger than the sum of its proper divisors (1).

45445069 is an equidigital number, since it uses as much as digits as its factorization.

45445069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 45445069 is about 6741.2957953201. The cubic root of 45445069 is about 356.8581248059.

The spelling of 45445069 in words is "forty-five million, four hundred forty-five thousand, sixty-nine".