4145555 has 4 divisors (see below), whose sum is σ = 4974672. Its totient is φ = 3316440.

The previous prime is 4145549. The next prime is 4145567. The reversal of 4145555 is 5555414.

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 4145555 - 2⁴ = 4145539 is a prime.

It is a Duffinian 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, 414551 + ... + 414560.

It is an arithmetic number, because the mean of its divisors is an integer number (1243668).

Almost surely, 2^4145555 is an apocalyptic number.

4145555 is a deficient number, since it is larger than the sum of its proper divisors (829117).

4145555 is an equidigital number, since it uses as much as digits as its factorization.

4145555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829116.

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

The square root of 4145555 is about 2036.0636041146. The cubic root of 4145555 is about 160.6426625947.

The spelling of 4145555 in words is "four million, one hundred forty-five thousand, five hundred fifty-five".