2131801 has 8 divisors (see below), whose sum is σ = 2542464. Its totient is φ = 1747680.

The previous prime is 2131799. The next prime is 2131813. The reversal of 2131801 is 1081312.

2131801 = T₄₁₉ + T₄₂₀ + ... + T₄₄₁.

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 2131801 - 2¹ = 2131799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131601) 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, 6460 + ... + 6781.

It is an arithmetic number, because the mean of its divisors is an integer number (317808).

2^2131801 is an apocalyptic number.

It is an amenable number.

2131801 is a deficient number, since it is larger than the sum of its proper divisors (410663).

2131801 is a wasteful number, since it uses less digits than its factorization.

2131801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13271.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 2131801 is about 1460.0688339938. The cubic root of 2131801 is about 128.7010886572.

The spelling of 2131801 in words is "two million, one hundred thirty-one thousand, eight hundred one".