2126231 has 4 divisors (see below), whose sum is σ = 2140464. Its totient is φ = 2112000.

The previous prime is 2126227. The next prime is 2126249. The reversal of 2126231 is 1326212.

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

It is a cyclic number.

It is not a de Polignac number, because 2126231 - 2² = 2126227 is a prime.

It is a super-2 number, since 2×2126231² = 9041716530722, 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 (2126431) 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, 6890 + ... + 7191.

It is an arithmetic number, because the mean of its divisors is an integer number (535116).

2^2126231 is an apocalyptic number.

2126231 is a deficient number, since it is larger than the sum of its proper divisors (14233).

2126231 is a wasteful number, since it uses less digits than its factorization.

2126231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14232.

The product of its digits is 144, while the sum is 17.

The square root of 2126231 is about 1458.1601420969. The cubic root of 2126231 is about 128.5889002124.

The spelling of 2126231 in words is "two million, one hundred twenty-six thousand, two hundred thirty-one".