6138155 has 12 divisors (see below), whose sum is σ = 7641792. Its totient is φ = 4728240.

The previous prime is 6138149. The next prime is 6138161. The reversal of 6138155 is 5518316.

It is an interprime number because it is at equal distance from previous prime (6138149) and next prime (6138161).

It is not a de Polignac number, because 6138155 - 2¹⁴ = 6121771 is a prime.

It is an Ulam number.

It is a Duffinian 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 11 ways as a sum of consecutive naturals, for example, 30746 + ... + 30944.

It is an arithmetic number, because the mean of its divisors is an integer number (636816).

Almost surely, 2^6138155 is an apocalyptic number.

6138155 is a deficient number, since it is larger than the sum of its proper divisors (1503637).

6138155 is an equidigital number, since it uses as much as digits as its factorization.

6138155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434 (or 235 counting only the distinct ones).

The product of its digits is 3600, while the sum is 29.

The square root of 6138155 is about 2477.5300199998. The cubic root of 6138155 is about 183.0961800445.

The spelling of 6138155 in words is "six million, one hundred thirty-eight thousand, one hundred fifty-five".