2561134 has 4 divisors (see below), whose sum is σ = 3841704. Its totient is φ = 1280566.

The previous prime is 2561129. The next prime is 2561137. The reversal of 2561134 is 4311652.

2561134 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2561137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 640282 + ... + 640285.

It is an arithmetic number, because the mean of its divisors is an integer number (960426).

2^2561134 is an apocalyptic number.

2561134 is a deficient number, since it is larger than the sum of its proper divisors (1280570).

2561134 is a wasteful number, since it uses less digits than its factorization.

2561134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1280569.

The product of its digits is 720, while the sum is 22.

The square root of 2561134 is about 1600.3543357644. The cubic root of 2561134 is about 136.8182718432.

Adding to 2561134 its reverse (4311652), we get a palindrome (6872786).

The spelling of 2561134 in words is "two million, five hundred sixty-one thousand, one hundred thirty-four".