45099973 has 2 divisors, whose sum is σ = 45099974. Its totient is φ = 45099972.

The previous prime is 45099953. The next prime is 45100007. The reversal of 45099973 is 37999054.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35070084 + 10029889 = 5922^2 + 3167^2 .

It is a cyclic number.

It is not a de Polignac number, because 45099973 - 2¹⁷ = 44968901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45099953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22549986 + 22549987.

It is an arithmetic number, because the mean of its divisors is an integer number (22549987).

Almost surely, 2^45099973 is an apocalyptic number.

It is an amenable number.

45099973 is a deficient number, since it is larger than the sum of its proper divisors (1).

45099973 is an equidigital number, since it uses as much as digits as its factorization.

45099973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 306180, while the sum is 46.

The square root of 45099973 is about 6715.6513459232. The cubic root of 45099973 is about 355.9525380694.

The spelling of 45099973 in words is "forty-five million, ninety-nine thousand, nine hundred seventy-three".