45009719 has 2 divisors, whose sum is σ = 45009720. Its totient is φ = 45009718.

The previous prime is 45009709. The next prime is 45009749. The reversal of 45009719 is 91790054.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45009719 is a prime.

It is a super-3 number, since 3×45009719³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45009709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22504859 + 22504860.

It is an arithmetic number, because the mean of its divisors is an integer number (22504860).

Almost surely, 2^45009719 is an apocalyptic number.

45009719 is a deficient number, since it is larger than the sum of its proper divisors (1).

45009719 is an equidigital number, since it uses as much as digits as its factorization.

45009719 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 45009719 is about 6708.9283048785. The cubic root of 45009719 is about 355.7149356028.

The spelling of 45009719 in words is "forty-five million, nine thousand, seven hundred nineteen".