445111513 has 16 divisors (see below), whose sum is σ = 560342016. Its totient is φ = 343466640.

The previous prime is 445111507. The next prime is 445111523. The reversal of 445111513 is 315111544.

It is not a de Polignac number, because 445111513 - 2⁵ = 445111481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (445111523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20131 + ... + 35992.

It is an arithmetic number, because the mean of its divisors is an integer number (35021376).

Almost surely, 2^445111513 is an apocalyptic number.

It is an amenable number.

445111513 is a deficient number, since it is larger than the sum of its proper divisors (115230503).

445111513 is a wasteful number, since it uses less digits than its factorization.

445111513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56244.

The product of its digits is 1200, while the sum is 25.

The square root of 445111513 is about 21097.6660557513. Note that the first 3 decimals coincide. The cubic root of 445111513 is about 763.5244389504.

The spelling of 445111513 in words is "four hundred forty-five million, one hundred eleven thousand, five hundred thirteen".