3506181 has 16 divisors (see below), whose sum is σ = 5376000. Its totient is φ = 1991088.

The previous prime is 3506179. The next prime is 3506201. The reversal of 3506181 is 1816053.

It is not a de Polignac number, because 3506181 - 2¹ = 3506179 is a prime.

It is a super-2 number, since 2×3506181² = 24586610409522, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3506101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3760 + ... + 4598.

It is an arithmetic number, because the mean of its divisors is an integer number (336000).

Almost surely, 2^3506181 is an apocalyptic number.

It is an amenable number.

3506181 is a deficient number, since it is larger than the sum of its proper divisors (1869819).

3506181 is a wasteful number, since it uses less digits than its factorization.

3506181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 3506181 is about 1872.4799064342. The cubic root of 3506181 is about 151.9187729675.

The spelling of 3506181 in words is "three million, five hundred six thousand, one hundred eighty-one".