2046181 has 4 divisors (see below), whose sum is σ = 2059372. Its totient is φ = 2032992.

The previous prime is 2046169. The next prime is 2046193. The reversal of 2046181 is 1816402.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2046169) and next prime (2046193).

It can be written as a sum of positive squares in 2 ways, for example, as 933156 + 1113025 = 966^2 + 1055^2 .

It is a cyclic number.

It is not a de Polignac number, because 2046181 - 2⁹ = 2045669 is a prime.

It is a super-2 number, since 2×2046181² = 8373713369522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2046101) 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, 6360 + ... + 6673.

It is an arithmetic number, because the mean of its divisors is an integer number (514843).

2^2046181 is an apocalyptic number.

It is an amenable number.

2046181 is a deficient number, since it is larger than the sum of its proper divisors (13191).

2046181 is a wasteful number, since it uses less digits than its factorization.

2046181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13190.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 2046181 is about 1430.4478319743. The cubic root of 2046181 is about 126.9544755923.

The spelling of 2046181 in words is "two million, forty-six thousand, one hundred eighty-one".