2135459 has 4 divisors (see below), whose sum is σ = 2139816. Its totient is φ = 2131104.

The previous prime is 2135453. The next prime is 2135479. The reversal of 2135459 is 9545312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2135459 - 2¹⁶ = 2069923 is a prime.

It is a d-powerful number, because it can be written as 2¹¹ + 1 + 3¹¹ + 5⁵ + 4 + 5⁹ + 9 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2135453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1334 + ... + 2459.

It is an arithmetic number, because the mean of its divisors is an integer number (534954).

2^2135459 is an apocalyptic number.

2135459 is a deficient number, since it is larger than the sum of its proper divisors (4357).

2135459 is an equidigital number, since it uses as much as digits as its factorization.

2135459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4356.

The product of its digits is 5400, while the sum is 29.

The square root of 2135459 is about 1461.3209777458. The cubic root of 2135459 is about 128.7746601836.

The spelling of 2135459 in words is "two million, one hundred thirty-five thousand, four hundred fifty-nine".