2134705 has 4 divisors (see below), whose sum is σ = 2561652. Its totient is φ = 1707760.

The previous prime is 2134703. The next prime is 2134709. The reversal of 2134705 is 5074312.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1245456 + 889249 = 1116^2 + 943^2 .

It is not a de Polignac number, because 2134705 - 2¹ = 2134703 is a prime.

It is a super-3 number, since 3×2134705³ = 29183330709733357875, which contains 333 as substring.

It is a Duffinian number.

2134705 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2134703) 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, 213466 + ... + 213475.

It is an arithmetic number, because the mean of its divisors is an integer number (640413).

2^2134705 is an apocalyptic number.

It is an amenable number.

2134705 is a deficient number, since it is larger than the sum of its proper divisors (426947).

2134705 is an equidigital number, since it uses as much as digits as its factorization.

2134705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426946.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 2134705 is about 1461.0629692111. The cubic root of 2134705 is about 128.7595022364.

The spelling of 2134705 in words is "two million, one hundred thirty-four thousand, seven hundred five".