20540134 has 8 divisors (see below), whose sum is σ = 30830688. Its totient is φ = 10263240.

The previous prime is 20540129. The next prime is 20540137. The reversal of 20540134 is 43104502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20540137) 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, 2179 + ... + 6769.

It is an arithmetic number, because the mean of its divisors is an integer number (3853836).

Almost surely, 2^20540134 is an apocalyptic number.

20540134 is a deficient number, since it is larger than the sum of its proper divisors (10290554).

20540134 is a wasteful number, since it uses less digits than its factorization.

20540134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6830.

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

The square root of 20540134 is about 4532.1224608344. The cubic root of 20540134 is about 273.8636702586.

Adding to 20540134 its reverse (43104502), we get a palindrome (63644636).

The spelling of 20540134 in words is "twenty million, five hundred forty thousand, one hundred thirty-four".