445143607 has 2 divisors, whose sum is σ = 445143608. Its totient is φ = 445143606.

The previous prime is 445143599. The next prime is 445143619. The reversal of 445143607 is 706341544.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 445143607 - 2³ = 445143599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445143667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222571803 + 222571804.

It is an arithmetic number, because the mean of its divisors is an integer number (222571804).

Almost surely, 2^445143607 is an apocalyptic number.

445143607 is a deficient number, since it is larger than the sum of its proper divisors (1).

445143607 is an equidigital number, since it uses as much as digits as its factorization.

445143607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 445143607 is about 21098.4266475015. The cubic root of 445143607 is about 763.5427893814.

The spelling of 445143607 in words is "four hundred forty-five million, one hundred forty-three thousand, six hundred seven".