2116231 has 4 divisors (see below), whose sum is σ = 2279032. Its totient is φ = 1953432.

The previous prime is 2116199. The next prime is 2116291. The reversal of 2116231 is 1326112.

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

It is not a de Polignac number, because 2116231 - 2⁵ = 2116199 is a prime.

It is a super-2 number, since 2×2116231² = 8956867290722, 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 (2116291) 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, 81381 + ... + 81406.

It is an arithmetic number, because the mean of its divisors is an integer number (569758).

2^2116231 is an apocalyptic number.

2116231 is a deficient number, since it is larger than the sum of its proper divisors (162801).

2116231 is a wasteful number, since it uses less digits than its factorization.

2116231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162800.

The product of its digits is 72, while the sum is 16.

The square root of 2116231 is about 1454.7271221779. The cubic root of 2116231 is about 128.3869920473.

The spelling of 2116231 in words is "two million, one hundred sixteen thousand, two hundred thirty-one".