3774181 has 2 divisors, whose sum is σ = 3774182. Its totient is φ = 3774180.

The previous prime is 3774163. The next prime is 3774191. The reversal of 3774181 is 1814773.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3330625 + 443556 = 1825^2 + 666^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3774181 is a prime.

It is a super-2 number, since 2×3774181² = 28488884441522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3774101) 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 as a sum of consecutive naturals, namely, 1887090 + 1887091.

It is an arithmetic number, because the mean of its divisors is an integer number (1887091).

Almost surely, 2^3774181 is an apocalyptic number.

It is an amenable number.

3774181 is a deficient number, since it is larger than the sum of its proper divisors (1).

3774181 is an equidigital number, since it uses as much as digits as its factorization.

3774181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4704, while the sum is 31.

The square root of 3774181 is about 1942.7251478271. The cubic root of 3774181 is about 155.6948478147.

Multiplying 3774181 by its sum of digits (31), we get a palindrome (116999611).

The spelling of 3774181 in words is "three million, seven hundred seventy-four thousand, one hundred eighty-one".