45240073 has 2 divisors, whose sum is σ = 45240074. Its totient is φ = 45240072.

The previous prime is 45240047. The next prime is 45240109. The reversal of 45240073 is 37004254.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23309584 + 21930489 = 4828^2 + 4683^2 .

It is a cyclic number.

It is not a de Polignac number, because 45240073 - 2⁹ = 45239561 is a prime.

It is not a weakly prime, because it can be changed into another prime (45240373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22620036 + 22620037.

It is an arithmetic number, because the mean of its divisors is an integer number (22620037).

Almost surely, 2^45240073 is an apocalyptic number.

It is an amenable number.

45240073 is a deficient number, since it is larger than the sum of its proper divisors (1).

45240073 is an equidigital number, since it uses as much as digits as its factorization.

45240073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 45240073 is about 6726.0741149648. The cubic root of 45240073 is about 356.3207378563.

The spelling of 45240073 in words is "forty-five million, two hundred forty thousand, seventy-three".