20134765 has 16 divisors (see below), whose sum is σ = 27694080. Its totient is φ = 13766400.

The previous prime is 20134759. The next prime is 20134769. The reversal of 20134765 is 56743102.

It is not a de Polignac number, because 20134765 - 2³ = 20134757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20134769) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16165 + ... + 17365.

It is an arithmetic number, because the mean of its divisors is an integer number (1730880).

Almost surely, 2^20134765 is an apocalyptic number.

It is an amenable number.

20134765 is a deficient number, since it is larger than the sum of its proper divisors (7559315).

20134765 is a wasteful number, since it uses less digits than its factorization.

20134765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1692.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 20134765 is about 4487.1778435894. The cubic root of 20134765 is about 272.0500781858.

Adding to 20134765 its reverse (56743102), we get a palindrome (76877867).

The spelling of 20134765 in words is "twenty million, one hundred thirty-four thousand, seven hundred sixty-five".