4642155 has 24 divisors (see below), whose sum is σ = 9196512. Its totient is φ = 2121984.

The previous prime is 4642123. The next prime is 4642163. The reversal of 4642155 is 5512464.

4642155 is a `hidden beast` number, since 4 + 642 + 15 + 5 = 666.

It is not a de Polignac number, because 4642155 - 2⁵ = 4642123 is a prime.

4642155 is a lucky 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 23 ways as a sum of consecutive naturals, for example, 7054 + ... + 7683.

It is an arithmetic number, because the mean of its divisors is an integer number (383188).

Almost surely, 2^4642155 is an apocalyptic number.

4642155 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

4642155 is a deficient number, since it is larger than the sum of its proper divisors (4554357).

4642155 is a wasteful number, since it uses less digits than its factorization.

4642155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14755 (or 14752 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 4642155 is about 2154.5660816044. The cubic root of 4642155 is about 166.8168357659.

The spelling of 4642155 in words is "four million, six hundred forty-two thousand, one hundred fifty-five".