3456181 has 4 divisors (see below), whose sum is σ = 3470764. Its totient is φ = 3441600.

The previous prime is 3456169. The next prime is 3456197. The reversal of 3456181 is 1816543.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1069156 + 2387025 = 1034^2 + 1545^2 .

It is a cyclic number.

It is not a de Polignac number, because 3456181 - 2⁷ = 3456053 is a prime.

It is a super-2 number, since 2×3456181² = 23890374209522, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

3456181 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3456781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6930 + ... + 7411.

It is an arithmetic number, because the mean of its divisors is an integer number (867691).

Almost surely, 2^3456181 is an apocalyptic number.

It is an amenable number.

3456181 is a deficient number, since it is larger than the sum of its proper divisors (14583).

3456181 is a wasteful number, since it uses less digits than its factorization.

3456181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14582.

The product of its digits is 2880, while the sum is 28.

The square root of 3456181 is about 1859.0806867912. The cubic root of 3456181 is about 151.1931653592.

The spelling of 3456181 in words is "three million, four hundred fifty-six thousand, one hundred eighty-one".