2128293 has 6 divisors (see below), whose sum is σ = 3074214. Its totient is φ = 1418856.

The previous prime is 2128283. The next prime is 2128303. The reversal of 2128293 is 3928212.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2128283) and next prime (2128303).

It can be written as a sum of positive squares in only one way, i.e., 1954404 + 173889 = 1398^2 + 417^2 .

It is not a de Polignac number, because 2128293 - 2⁵ = 2128261 is a prime.

It is a d-powerful number, because it can be written as 2¹² + 1 + 2¹⁴ + 8⁴ + 2²¹ + 9⁴ + 3 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2128253) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 118230 + ... + 118247.

It is an arithmetic number, because the mean of its divisors is an integer number (512369).

2^2128293 is an apocalyptic number.

It is an amenable number.

2128293 is a deficient number, since it is larger than the sum of its proper divisors (945921).

2128293 is a wasteful number, since it uses less digits than its factorization.

2128293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236483 (or 236480 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 2128293 is about 1458.8670261542. The cubic root of 2128293 is about 128.6304549078.

The spelling of 2128293 in words is "two million, one hundred twenty-eight thousand, two hundred ninety-three".