2180901 has 8 divisors (see below), whose sum is σ = 2917600. Its totient is φ = 1449072.

The previous prime is 2180873. The next prime is 2180911. The reversal of 2180901 is 1090812.

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

It is not a de Polignac number, because 2180901 - 2⁹ = 2180389 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 (2180911) 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, 6 + ... + 2088.

It is an arithmetic number, because the mean of its divisors is an integer number (364700).

2^2180901 is an apocalyptic number.

It is an amenable number.

2180901 is a deficient number, since it is larger than the sum of its proper divisors (736699).

2180901 is a wasteful number, since it uses less digits than its factorization.

2180901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2435.

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 2180901 is about 1476.7873916038. The cubic root of 2180901 is about 129.6816867090.

It can be divided in two parts, 2180 and 901, that added together give a triangular number (3081 = T₇₈).

The spelling of 2180901 in words is "two million, one hundred eighty thousand, nine hundred one".