3850155 has 24 divisors (see below), whose sum is σ = 6778512. Its totient is φ = 2021184.

The previous prime is 3850153. The next prime is 3850159. The reversal of 3850155 is 5510583.

3850155 is nontrivially palindromic in base 4.

It is not a de Polignac number, because 3850155 - 2¹ = 3850153 is a prime.

3850155 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3850151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2377 + ... + 3653.

It is an arithmetic number, because the mean of its divisors is an integer number (282438).

Almost surely, 2^3850155 is an apocalyptic number.

3850155 is a deficient number, since it is larger than the sum of its proper divisors (2928357).

3850155 is a wasteful number, since it uses less digits than its factorization.

3850155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1355 (or 1352 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 3850155 is about 1962.1811842947. The cubic root of 3850155 is about 156.7326240059.

It can be divided in two parts, 3850 and 155, that added together give a triangular number (4005 = T₈₉).

The spelling of 3850155 in words is "three million, eight hundred fifty thousand, one hundred fifty-five".