445173133 has 2 divisors, whose sum is σ = 445173134. Its totient is φ = 445173132.

The previous prime is 445173083. The next prime is 445173151. The reversal of 445173133 is 331371544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 268894404 + 176278729 = 16398^2 + 13277^2 .

It is a cyclic number.

It is not a de Polignac number, because 445173133 - 2⁹ = 445172621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 445173095 and 445173104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445174133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222586566 + 222586567.

It is an arithmetic number, because the mean of its divisors is an integer number (222586567).

Almost surely, 2^445173133 is an apocalyptic number.

It is an amenable number.

445173133 is a deficient number, since it is larger than the sum of its proper divisors (1).

445173133 is an equidigital number, since it uses as much as digits as its factorization.

445173133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 31.

The square root of 445173133 is about 21099.1263563210. The cubic root of 445173133 is about 763.5596707246.

The spelling of 445173133 in words is "four hundred forty-five million, one hundred seventy-three thousand, one hundred thirty-three".