2126729 has 8 divisors (see below), whose sum is σ = 2330688. Its totient is φ = 1924560.

The previous prime is 2126687. The next prime is 2126749. The reversal of 2126729 is 9276212.

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

It is not a de Polignac number, because 2126729 - 2¹² = 2122633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2126749) 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, 4124 + ... + 4610.

It is an arithmetic number, because the mean of its divisors is an integer number (291336).

2^2126729 is an apocalyptic number.

It is an amenable number.

2126729 is a deficient number, since it is larger than the sum of its proper divisors (203959).

2126729 is a wasteful number, since it uses less digits than its factorization.

2126729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895.

The product of its digits is 3024, while the sum is 29.

The square root of 2126729 is about 1458.3308952361. The cubic root of 2126729 is about 128.5989386753.

The spelling of 2126729 in words is "two million, one hundred twenty-six thousand, seven hundred twenty-nine".