445143401 has 4 divisors (see below), whose sum is σ = 445619412. Its totient is φ = 444667392.

The previous prime is 445143329. The next prime is 445143407. The reversal of 445143401 is 104341544.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 56265001 + 388878400 = 7501^2 + 19720^2 .

It is a cyclic number.

It is not a de Polignac number, because 445143401 - 2¹⁰ = 445142377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (445143407) 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 in 3 ways as a sum of consecutive naturals, for example, 236600 + ... + 238473.

It is an arithmetic number, because the mean of its divisors is an integer number (111404853).

Almost surely, 2^445143401 is an apocalyptic number.

It is an amenable number.

445143401 is a deficient number, since it is larger than the sum of its proper divisors (476011).

445143401 is an equidigital number, since it uses as much as digits as its factorization.

445143401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476010.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 445143401 is about 21098.4217656203. The cubic root of 445143401 is about 763.5426715993.

Adding to 445143401 its reverse (104341544), we get a palindrome (549484945).

It can be divided in two parts, 445143 and 401, that added together give a palindrome (445544).

The spelling of 445143401 in words is "four hundred forty-five million, one hundred forty-three thousand, four hundred one".