3502161 has 24 divisors (see below), whose sum is σ = 5601960. Its totient is φ = 2094336.

The previous prime is 3502159. The next prime is 3502183. The reversal of 3502161 is 1612053.

3502161 is a `hidden beast` number, since 3 + 502 + 161 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1252161 + 2250000 = 1119^2 + 1500^2 .

It is not a de Polignac number, because 3502161 - 2¹ = 3502159 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3502151) 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, 3925 + ... + 4733.

It is an arithmetic number, because the mean of its divisors is an integer number (233415).

Almost surely, 2^3502161 is an apocalyptic number.

It is an amenable number.

3502161 is a deficient number, since it is larger than the sum of its proper divisors (2099799).

3502161 is a wasteful number, since it uses less digits than its factorization.

3502161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865 (or 862 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 3502161 is about 1871.4061558090. The cubic root of 3502161 is about 151.8606901114.

Subtracting from 3502161 its product of nonzero digits (180), we obtain a triangular number (3501981 = T₂₆₄₆).

It can be divided in two parts, 3502 and 161, that added together give a palindrome (3663).

The spelling of 3502161 in words is "three million, five hundred two thousand, one hundred sixty-one".