3106181 has 8 divisors (see below), whose sum is σ = 3400824. Its totient is φ = 2819520.

The previous prime is 3106163. The next prime is 3106193. The reversal of 3106181 is 1816013.

It can be written as a sum of positive squares in 4 ways, for example, as 12100 + 3094081 = 110^2 + 1759^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3106181 is a prime.

It is a super-2 number, since 2×3106181² = 19296720809522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3106111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1166 + ... + 2751.

It is an arithmetic number, because the mean of its divisors is an integer number (425103).

Almost surely, 2^3106181 is an apocalyptic number.

It is an amenable number.

3106181 is a deficient number, since it is larger than the sum of its proper divisors (294643).

3106181 is a wasteful number, since it uses less digits than its factorization.

3106181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3991.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 3106181 is about 1762.4360981324. The cubic root of 3106181 is about 145.9068180038.

The spelling of 3106181 in words is "three million, one hundred six thousand, one hundred eighty-one".