2128701 has 12 divisors (see below), whose sum is σ = 2900768. Its totient is φ = 1388424.

The previous prime is 2128697. The next prime is 2128727. The reversal of 2128701 is 1078212.

It is not a de Polignac number, because 2128701 - 2² = 2128697 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2128751) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20616 + ... + 20718.

2^2128701 is an apocalyptic number.

It is an amenable number.

2128701 is a deficient number, since it is larger than the sum of its proper divisors (772067).

2128701 is an equidigital number, since it uses as much as digits as its factorization.

2128701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272 (or 189 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 2128701 is about 1459.0068539935. The cubic root of 2128701 is about 128.6386739942.

The spelling of 2128701 in words is "two million, one hundred twenty-eight thousand, seven hundred one".