45219469 has 2 divisors, whose sum is σ = 45219470. Its totient is φ = 45219468.

The previous prime is 45219467. The next prime is 45219481. The reversal of 45219469 is 96491254.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44382244 + 837225 = 6662^2 + 915^2 .

It is a cyclic number.

It is not a de Polignac number, because 45219469 - 2¹ = 45219467 is a prime.

It is a super-2 number, since 2×45219469² = 4089600753283922, which contains 22 as substring.

Together with 45219467, 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 (45219467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22609734 + 22609735.

It is an arithmetic number, because the mean of its divisors is an integer number (22609735).

Almost surely, 2^45219469 is an apocalyptic number.

It is an amenable number.

45219469 is a deficient number, since it is larger than the sum of its proper divisors (1).

45219469 is an equidigital number, since it uses as much as digits as its factorization.

45219469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 40.

The square root of 45219469 is about 6724.5422892566. The cubic root of 45219469 is about 356.2666357677.

The spelling of 45219469 in words is "forty-five million, two hundred nineteen thousand, four hundred sixty-nine".