2154113 has 4 divisors (see below), whose sum is σ = 2319828. Its totient is φ = 1988400.

The previous prime is 2154109. The next prime is 2154127. The reversal of 2154113 is 3114512.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1129969 + 1024144 = 1063^2 + 1012^2 .

It is a cyclic number.

It is not a de Polignac number, because 2154113 - 2² = 2154109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2154091 and 2154100.

It is not an unprimeable number, because it can be changed into a prime (2154143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82838 + ... + 82863.

It is an arithmetic number, because the mean of its divisors is an integer number (579957).

2^2154113 is an apocalyptic number.

It is an amenable number.

2154113 is a deficient number, since it is larger than the sum of its proper divisors (165715).

2154113 is a wasteful number, since it uses less digits than its factorization.

2154113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165714.

The product of its digits is 120, while the sum is 17.

The square root of 2154113 is about 1467.6896810975. The cubic root of 2154113 is about 129.1485379113.

Adding to 2154113 its reverse (3114512), we get a palindrome (5268625).

The spelling of 2154113 in words is "two million, one hundred fifty-four thousand, one hundred thirteen".