445044155 has 4 divisors (see below), whose sum is σ = 534052992. Its totient is φ = 356035320.

The previous prime is 445044143. The next prime is 445044157. The reversal of 445044155 is 551440544.

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

It is not a de Polignac number, because 445044155 - 2⁸ = 445043899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (445044157) 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 3 ways as a sum of consecutive naturals, for example, 44504411 + ... + 44504420.

It is an arithmetic number, because the mean of its divisors is an integer number (133513248).

Almost surely, 2^445044155 is an apocalyptic number.

445044155 is a deficient number, since it is larger than the sum of its proper divisors (89008837).

445044155 is an equidigital number, since it uses as much as digits as its factorization.

445044155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89008836.

The product of its (nonzero) digits is 32000, while the sum is 32.

The square root of 445044155 is about 21096.0696576400. The cubic root of 445044155 is about 763.4859227043.

Adding to 445044155 its reverse (551440544), we get a palindrome (996484699).

The spelling of 445044155 in words is "four hundred forty-five million, forty-four thousand, one hundred fifty-five".