45449473 has 2 divisors, whose sum is σ = 45449474. Its totient is φ = 45449472.

The previous prime is 45449399. The next prime is 45449477. The reversal of 45449473 is 37494454.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39727809 + 5721664 = 6303^2 + 2392^2 .

It is a cyclic number.

It is not a de Polignac number, because 45449473 - 2²¹ = 43352321 is a prime.

It is not a weakly prime, because it can be changed into another prime (45449477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22724736 + 22724737.

It is an arithmetic number, because the mean of its divisors is an integer number (22724737).

Almost surely, 2^45449473 is an apocalyptic number.

It is an amenable number.

45449473 is a deficient number, since it is larger than the sum of its proper divisors (1).

45449473 is an equidigital number, since it uses as much as digits as its factorization.

45449473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 40.

The square root of 45449473 is about 6741.6224308396. The cubic root of 45449473 is about 356.8696519268.

The spelling of 45449473 in words is "forty-five million, four hundred forty-nine thousand, four hundred seventy-three".