4155455 has 4 divisors (see below), whose sum is σ = 4986552. Its totient is φ = 3324360.

The previous prime is 4155427. The next prime is 4155467. The reversal of 4155455 is 5545514.

It is a happy number.

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

It is not a de Polignac number, because 4155455 - 2¹² = 4151359 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 415541 + ... + 415550.

It is an arithmetic number, because the mean of its divisors is an integer number (1246638).

Almost surely, 2^4155455 is an apocalyptic number.

4155455 is a deficient number, since it is larger than the sum of its proper divisors (831097).

4155455 is an equidigital number, since it uses as much as digits as its factorization.

4155455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831096.

The product of its digits is 10000, while the sum is 29.

The square root of 4155455 is about 2038.4933161529. The cubic root of 4155455 is about 160.7704378507.

The spelling of 4155455 in words is "four million, one hundred fifty-five thousand, four hundred fifty-five".