445155143 has 2 divisors, whose sum is σ = 445155144. Its totient is φ = 445155142.

The previous prime is 445155101. The next prime is 445155157. The reversal of 445155143 is 341551544.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 445155143 - 2⁸ = 445154887 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445155743) 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, 222577571 + 222577572.

It is an arithmetic number, because the mean of its divisors is an integer number (222577572).

Almost surely, 2^445155143 is an apocalyptic number.

445155143 is a deficient number, since it is larger than the sum of its proper divisors (1).

445155143 is an equidigital number, since it uses as much as digits as its factorization.

445155143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24000, while the sum is 32.

The square root of 445155143 is about 21098.7000310446. The cubic root of 445155143 is about 763.5493851207.

The spelling of 445155143 in words is "four hundred forty-five million, one hundred fifty-five thousand, one hundred forty-three".