4155445 has 16 divisors (see below), whose sum is σ = 5817600. Its totient is φ = 2848272.

The previous prime is 4155427. The next prime is 4155467. The reversal of 4155445 is 5445514.

It is not a de Polignac number, because 4155445 - 2⁵ = 4155413 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 504 + ... + 2926.

It is an arithmetic number, because the mean of its divisors is an integer number (363600).

Almost surely, 2^4155445 is an apocalyptic number.

It is an amenable number.

4155445 is a deficient number, since it is larger than the sum of its proper divisors (1662155).

4155445 is an equidigital number, since it uses as much as digits as its factorization.

4155445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2449 (or 2435 counting only the distinct ones).

The product of its digits is 8000, while the sum is 28.

The square root of 4155445 is about 2038.4908633595. The cubic root of 4155445 is about 160.7703088873.

The spelling of 4155445 in words is "four million, one hundred fifty-five thousand, four hundred forty-five".