3851155 has 24 divisors (see below), whose sum is σ = 5868720. Its totient is φ = 2399040.

The previous prime is 3851149. The next prime is 3851173. The reversal of 3851155 is 5511583.

It is not a de Polignac number, because 3851155 - 2³ = 3851147 is a prime.

3851155 is a modest number, since divided by 1155 gives 385 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1981 + ... + 3409.

It is an arithmetic number, because the mean of its divisors is an integer number (244530).

Almost surely, 2^3851155 is an apocalyptic number.

3851155 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3851155 is a deficient number, since it is larger than the sum of its proper divisors (2017565).

3851155 is a wasteful number, since it uses less digits than its factorization.

3851155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1459 (or 1452 counting only the distinct ones).

The product of its digits is 3000, while the sum is 28.

The square root of 3851155 is about 1962.4359862171. The cubic root of 3851155 is about 156.7461922091.

It can be divided in two parts, 385 and 1155, that added together give a triangular number (1540 = T₅₅).

The spelling of 3851155 in words is "three million, eight hundred fifty-one thousand, one hundred fifty-five".