2128737 has 8 divisors (see below), whose sum is σ = 3056704. Its totient is φ = 1309968.

The previous prime is 2128733. The next prime is 2128747. The reversal of 2128737 is 7378212.

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

It is not a de Polignac number, because 2128737 - 2² = 2128733 is a prime.

It is a Duffinian number.

2128737 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2128733) 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, 27253 + ... + 27330.

It is an arithmetic number, because the mean of its divisors is an integer number (382088).

2^2128737 is an apocalyptic number.

It is an amenable number.

2128737 is a deficient number, since it is larger than the sum of its proper divisors (927967).

2128737 is a wasteful number, since it uses less digits than its factorization.

2128737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54599.

The product of its digits is 4704, while the sum is 30.

The square root of 2128737 is about 1459.0191911007. The cubic root of 2128737 is about 128.6393991573.

The spelling of 2128737 in words is "two million, one hundred twenty-eight thousand, seven hundred thirty-seven".