2135273 has 6 divisors (see below), whose sum is σ = 2483946. Its totient is φ = 1830192.

The previous prime is 2135267. The next prime is 2135279. The reversal of 2135273 is 3725312.

It is an interprime number because it is at equal distance from previous prime (2135267) and next prime (2135279).

It can be written as a sum of positive squares in only one way, i.e., 1605289 + 529984 = 1267^2 + 728^2 .

It is not a de Polignac number, because 2135273 - 2⁸ = 2135017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2135279) 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, 21740 + ... + 21837.

It is an arithmetic number, because the mean of its divisors is an integer number (413991).

2^2135273 is an apocalyptic number.

It is an amenable number.

2135273 is a deficient number, since it is larger than the sum of its proper divisors (348673).

2135273 is an equidigital number, since it uses as much as digits as its factorization.

2135273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43591 (or 43584 counting only the distinct ones).

The product of its digits is 1260, while the sum is 23.

The square root of 2135273 is about 1461.2573353109. The cubic root of 2135273 is about 128.7709212868.

The spelling of 2135273 in words is "two million, one hundred thirty-five thousand, two hundred seventy-three".