2134605 has 32 divisors (see below), whose sum is σ = 3950208. Its totient is φ = 972800.

The previous prime is 2134589. The next prime is 2134609. The reversal of 2134605 is 5064312.

It is a happy number.

It is not a de Polignac number, because 2134605 - 2⁴ = 2134589 is a prime.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2134609) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2425 + ... + 3185.

It is an arithmetic number, because the mean of its divisors is an integer number (123444).

2^2134605 is an apocalyptic number.

It is an amenable number.

2134605 is a deficient number, since it is larger than the sum of its proper divisors (1815603).

2134605 is a wasteful number, since it uses less digits than its factorization.

2134605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2134605 is about 1461.0287471504. The cubic root of 2134605 is about 128.7574916306.

Adding to 2134605 its reverse (5064312), we get a palindrome (7198917).

The spelling of 2134605 in words is "two million, one hundred thirty-four thousand, six hundred five".