2180331 has 16 divisors (see below), whose sum is σ = 3371520. Its totient is φ = 1389960.

The previous prime is 2180329. The next prime is 2180333. The reversal of 2180331 is 1330812.

It is an interprime number because it is at equal distance from previous prime (2180329) and next prime (2180333).

It is not a de Polignac number, because 2180331 - 2¹ = 2180329 is a prime.

It is a super-2 number, since 2×2180331² = 9507686539122, which contains 22 as substring.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2180333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1135 + ... + 2376.

It is an arithmetic number, because the mean of its divisors is an integer number (210720).

2^2180331 is an apocalyptic number.

2180331 is a deficient number, since it is larger than the sum of its proper divisors (1191189).

2180331 is a wasteful number, since it uses less digits than its factorization.

2180331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3543 (or 3537 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 2180331 is about 1476.5943925127. The cubic root of 2180331 is about 129.6703878617.

The spelling of 2180331 in words is "two million, one hundred eighty thousand, three hundred thirty-one".