445081 has 16 divisors (see below), whose sum is σ = 563584. Its totient is φ = 342144.

The previous prime is 445069. The next prime is 445087. The reversal of 445081 is 180544.

It is a cyclic number.

It is not a de Polignac number, because 445081 - 2⁷ = 444953 is a prime.

It is a super-2 number, since 2×445081² = 396194193122, which contains 22 as substring.

445081 is an undulating number in base 9.

It is not an unprimeable number, because it can be changed into a prime (445087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6061 + ... + 6133.

It is an arithmetic number, because the mean of its divisors is an integer number (35224).

2⁴⁴⁵⁰⁸¹ is an apocalyptic number.

It is an amenable number.

445081 is a deficient number, since it is larger than the sum of its proper divisors (118503).

445081 is a wasteful number, since it uses less digits than its factorization.

445081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 445081 is about 667.1439125106. The cubic root of 445081 is about 76.3506991672.

The spelling of 445081 in words is "four hundred forty-five thousand, eighty-one".