4087181 has 8 divisors (see below), whose sum is σ = 4702080. Its totient is φ = 3480048.

The previous prime is 4087177. The next prime is 4087189. The reversal of 4087181 is 1817804.

4087181 = T₄₂₀ + T₄₂₁ + ... + T₄₆₁.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4087181 - 2² = 4087177 is a prime.

It is a super-2 number, since 2×4087181² = 33410097053522, which contains 22 as substring.

It is a Duffinian 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 (4087189) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 761 + ... + 2958.

It is an arithmetic number, because the mean of its divisors is an integer number (587760).

Almost surely, 2^4087181 is an apocalyptic number.

It is an amenable number.

4087181 is a deficient number, since it is larger than the sum of its proper divisors (614899).

4087181 is a wasteful number, since it uses less digits than its factorization.

4087181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3883.

The product of its (nonzero) digits is 1792, while the sum is 29.

The square root of 4087181 is about 2021.6777685873. The cubic root of 4087181 is about 159.8850867590.

The spelling of 4087181 in words is "four million, eighty-seven thousand, one hundred eighty-one".