2114781 has 8 divisors (see below), whose sum is σ = 2942400. Its totient is φ = 1348512.

The previous prime is 2114771. The next prime is 2114797. The reversal of 2114781 is 1874112.

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

It is not a de Polignac number, because 2114781 - 2⁷ = 2114653 is a prime.

It is a super-2 number, since 2×2114781² = 8944597355922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2114711) 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, 15256 + ... + 15393.

It is an arithmetic number, because the mean of its divisors is an integer number (367800).

2^2114781 is an apocalyptic number.

It is an amenable number.

2114781 is a deficient number, since it is larger than the sum of its proper divisors (827619).

2114781 is a wasteful number, since it uses less digits than its factorization.

2114781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30675.

The product of its digits is 448, while the sum is 24.

The square root of 2114781 is about 1454.2286615247. The cubic root of 2114781 is about 128.3576625975.

Adding to 2114781 its reverse (1874112), we get a palindrome (3988893).

The spelling of 2114781 in words is "two million, one hundred fourteen thousand, seven hundred eighty-one".