2128513 has 8 divisors (see below), whose sum is σ = 2318400. Its totient is φ = 1946448.

The previous prime is 2128501. The next prime is 2128531. The reversal of 2128513 is 3158212.

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

It is a cyclic number.

It is not a de Polignac number, because 2128513 - 2⁵ = 2128481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120513) 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, 1381 + ... + 2482.

It is an arithmetic number, because the mean of its divisors is an integer number (289800).

2^2128513 is an apocalyptic number.

It is an amenable number.

2128513 is a deficient number, since it is larger than the sum of its proper divisors (189887).

2128513 is a wasteful number, since it uses less digits than its factorization.

2128513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3911.

The product of its digits is 480, while the sum is 22.

The square root of 2128513 is about 1458.9424251834. The cubic root of 2128513 is about 128.6348868986.

The spelling of 2128513 in words is "two million, one hundred twenty-eight thousand, five hundred thirteen".