3538181 has 4 divisors (see below), whose sum is σ = 3543072. Its totient is φ = 3533292.

The previous prime is 3538151. The next prime is 3538187. The reversal of 3538181 is 1818353.

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 a de Polignac number, because none of the positive numbers 2^k-3538181 is a prime.

It is a super-2 number, since 2×3538181² = 25037449577522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3538187) 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, 1121 + ... + 2886.

It is an arithmetic number, because the mean of its divisors is an integer number (885768).

Almost surely, 2^3538181 is an apocalyptic number.

It is an amenable number.

3538181 is a deficient number, since it is larger than the sum of its proper divisors (4891).

3538181 is an equidigital number, since it uses as much as digits as its factorization.

3538181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4890.

The product of its digits is 2880, while the sum is 29.

The square root of 3538181 is about 1881.0053163136. The cubic root of 3538181 is about 152.3795483517.

The spelling of 3538181 in words is "three million, five hundred thirty-eight thousand, one hundred eighty-one".