4998155 has 4 divisors (see below), whose sum is σ = 5997792. Its totient is φ = 3998520.

The previous prime is 4998137. The next prime is 4998181. The reversal of 4998155 is 5518994.

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 4998155 - 2⁸ = 4997899 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, 499811 + ... + 499820.

It is an arithmetic number, because the mean of its divisors is an integer number (1499448).

Almost surely, 2^4998155 is an apocalyptic number.

4998155 is a deficient number, since it is larger than the sum of its proper divisors (999637).

4998155 is an equidigital number, since it uses as much as digits as its factorization.

4998155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999636.

The product of its digits is 64800, while the sum is 41.

The square root of 4998155 is about 2235.6553848928. The cubic root of 4998155 is about 170.9765593760.

The spelling of 4998155 in words is "four million, nine hundred ninety-eight thousand, one hundred fifty-five".