445150309 has 2 divisors, whose sum is σ = 445150310. Its totient is φ = 445150308.

The previous prime is 445150289. The next prime is 445150313. The reversal of 445150309 is 903051544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 251856900 + 193293409 = 15870^2 + 13903^2 .

It is a cyclic number.

It is not a de Polignac number, because 445150309 - 2²¹ = 443053157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445150399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222575154 + 222575155.

It is an arithmetic number, because the mean of its divisors is an integer number (222575155).

Almost surely, 2^445150309 is an apocalyptic number.

It is an amenable number.

445150309 is a deficient number, since it is larger than the sum of its proper divisors (1).

445150309 is an equidigital number, since it uses as much as digits as its factorization.

445150309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 445150309 is about 21098.5854739127. The cubic root of 445150309 is about 763.5466212820.

The spelling of 445150309 in words is "four hundred forty-five million, one hundred fifty thousand, three hundred nine".