3749181 has 4 divisors (see below), whose sum is σ = 4998912. Its totient is φ = 2499452.

The previous prime is 3749153. The next prime is 3749183. The reversal of 3749181 is 1819473.

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 3749181 - 2⁶ = 3749117 is a prime.

It is a super-2 number, since 2×3749181² = 28112716341522, which contains 22 as substring.

It is a D-number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3749183) 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, 624861 + ... + 624866.

It is an arithmetic number, because the mean of its divisors is an integer number (1249728).

Almost surely, 2^3749181 is an apocalyptic number.

It is an amenable number.

3749181 is a deficient number, since it is larger than the sum of its proper divisors (1249731).

3749181 is a wasteful number, since it uses less digits than its factorization.

3749181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1249730.

The product of its digits is 6048, while the sum is 33.

The square root of 3749181 is about 1936.2801966658. The cubic root of 3749181 is about 155.3503141479.

The spelling of 3749181 in words is "three million, seven hundred forty-nine thousand, one hundred eighty-one".