45321449 has 2 divisors, whose sum is σ = 45321450. Its totient is φ = 45321448.

The previous prime is 45321443. The next prime is 45321457. The reversal of 45321449 is 94412354.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28015849 + 17305600 = 5293^2 + 4160^2 .

It is a cyclic number.

It is not a de Polignac number, because 45321449 - 2⁴ = 45321433 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (45321443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22660724 + 22660725.

It is an arithmetic number, because the mean of its divisors is an integer number (22660725).

Almost surely, 2^45321449 is an apocalyptic number.

It is an amenable number.

45321449 is a deficient number, since it is larger than the sum of its proper divisors (1).

45321449 is an equidigital number, since it uses as much as digits as its factorization.

45321449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 32.

The square root of 45321449 is about 6732.1206911344. The cubic root of 45321449 is about 356.5342549605.

The spelling of 45321449 in words is "forty-five million, three hundred twenty-one thousand, four hundred forty-nine".