2134405 has 16 divisors (see below), whose sum is σ = 3153024. Its totient is φ = 1350720.

The previous prime is 2134399. The next prime is 2134409. The reversal of 2134405 is 5044312.

It is not a de Polignac number, because 2134405 - 2⁵ = 2134373 is a prime.

It is a d-powerful number, because it can be written as 2⁵ + 1 + 3¹¹ + 4 + 4⁶ + 0 + 5⁹ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2134409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1891 + ... + 2800.

It is an arithmetic number, because the mean of its divisors is an integer number (197064).

2^2134405 is an apocalyptic number.

It is an amenable number.

2134405 is a deficient number, since it is larger than the sum of its proper divisors (1018619).

2134405 is a wasteful number, since it uses less digits than its factorization.

2134405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4716.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 2134405 is about 1460.9603006242. The cubic root of 2134405 is about 128.7534702304.

Adding to 2134405 its reverse (5044312), we get a palindrome (7178717).

The spelling of 2134405 in words is "two million, one hundred thirty-four thousand, four hundred five".