3634181 has 4 divisors (see below), whose sum is σ = 3711552. Its totient is φ = 3556812.

The previous prime is 3634171. The next prime is 3634201. The reversal of 3634181 is 1814363.

3634181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3634181 - 2¹⁴ = 3617797 is a prime.

It is a super-2 number, since 2×3634181² = 26414543081522, which contains 22 as substring.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3634181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3634171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38615 + ... + 38708.

It is an arithmetic number, because the mean of its divisors is an integer number (927888).

Almost surely, 2^3634181 is an apocalyptic number.

It is an amenable number.

3634181 is a deficient number, since it is larger than the sum of its proper divisors (77371).

3634181 is an equidigital number, since it uses as much as digits as its factorization.

3634181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77370.

The product of its digits is 1728, while the sum is 26.

The square root of 3634181 is about 1906.3528005068. The cubic root of 3634181 is about 153.7454190364.

The spelling of 3634181 in words is "three million, six hundred thirty-four thousand, one hundred eighty-one".