2126456 has 8 divisors (see below), whose sum is σ = 3987120. Its totient is φ = 1063224.

The previous prime is 2126447. The next prime is 2126459. The reversal of 2126456 is 6546212.

It is a tau number, because it is divible by the number of its divisors (8).

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2126459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132896 + ... + 132911.

It is an arithmetic number, because the mean of its divisors is an integer number (498390).

2^2126456 is an apocalyptic number.

It is an amenable number.

2126456 is a deficient number, since it is larger than the sum of its proper divisors (1860664).

2126456 is a wasteful number, since it uses less digits than its factorization.

2126456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265813 (or 265809 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 2126456 is about 1458.2372920756. The cubic root of 2126456 is about 128.5934358566.

The spelling of 2126456 in words is "two million, one hundred twenty-six thousand, four hundred fifty-six".