3546181 has 2 divisors, whose sum is σ = 3546182. Its totient is φ = 3546180.

The previous prime is 3546173. The next prime is 3546199. The reversal of 3546181 is 1816453.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2528100 + 1018081 = 1590^2 + 1009^2 .

It is an emirp because it is prime and its reverse (1816453) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3546181 - 2³ = 3546173 is a prime.

It is a super-2 number, since 2×3546181² = 25150799369522, which contains 22 as substring.

3546181 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3546161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1773090 + 1773091.

It is an arithmetic number, because the mean of its divisors is an integer number (1773091).

Almost surely, 2^3546181 is an apocalyptic number.

It is an amenable number.

3546181 is a deficient number, since it is larger than the sum of its proper divisors (1).

3546181 is an equidigital number, since it uses as much as digits as its factorization.

3546181 is an evil number, because the sum of its binary digits is even.

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

The square root of 3546181 is about 1883.1306380599. The cubic root of 3546181 is about 152.4943077693.

The spelling of 3546181 in words is "three million, five hundred forty-six thousand, one hundred eighty-one".