162445441 has 4 divisors (see below), whose sum is σ = 162475092. Its totient is φ = 162415792.

The previous prime is 162445427. The next prime is 162445447. The reversal of 162445441 is 144544261.

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 141514816 + 20930625 = 11896^2 + 4575^2 .

It is a cyclic number.

It is not a de Polignac number, because 162445441 - 2²¹ = 160348289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (162445447) 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, 3946 + ... + 18451.

It is an arithmetic number, because the mean of its divisors is an integer number (40618773).

Almost surely, 2^162445441 is an apocalyptic number.

It is an amenable number.

162445441 is a deficient number, since it is larger than the sum of its proper divisors (29651).

162445441 is an equidigital number, since it uses as much as digits as its factorization.

162445441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29650.

The product of its digits is 15360, while the sum is 31.

The square root of 162445441 is about 12745.4086242851. The cubic root of 162445441 is about 545.6353625874.

The spelling of 162445441 in words is "one hundred sixty-two million, four hundred forty-five thousand, four hundred forty-one".