445352143 has 2 divisors, whose sum is σ = 445352144. Its totient is φ = 445352142.

The previous prime is 445352113. The next prime is 445352147. The reversal of 445352143 is 341253544.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 445352143 - 2⁹ = 445351631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445352147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222676071 + 222676072.

It is an arithmetic number, because the mean of its divisors is an integer number (222676072).

Almost surely, 2^445352143 is an apocalyptic number.

445352143 is a deficient number, since it is larger than the sum of its proper divisors (1).

445352143 is an equidigital number, since it uses as much as digits as its factorization.

445352143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28800, while the sum is 31.

The square root of 445352143 is about 21103.3680487263. The cubic root of 445352143 is about 763.6620028210.

The spelling of 445352143 in words is "four hundred forty-five million, three hundred fifty-two thousand, one hundred forty-three".