20134465 has 16 divisors (see below), whose sum is σ = 26198928. Its totient is φ = 14766336.

The previous prime is 20134463. The next prime is 20134483. The reversal of 20134465 is 56443102.

It can be written as a sum of positive squares in 8 ways, for example, as 5049009 + 15085456 = 2247^2 + 3884^2 .

It is not a de Polignac number, because 20134465 - 2¹ = 20134463 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20134463) 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 in 15 ways as a sum of consecutive naturals, for example, 9219 + ... + 11191.

It is an arithmetic number, because the mean of its divisors is an integer number (1637433).

Almost surely, 2^20134465 is an apocalyptic number.

It is an amenable number.

20134465 is a deficient number, since it is larger than the sum of its proper divisors (6064463).

20134465 is a wasteful number, since it uses less digits than its factorization.

20134465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2148.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 20134465 is about 4487.1444148813. The cubic root of 20134465 is about 272.0487270330.

Adding to 20134465 its reverse (56443102), we get a palindrome (76577567).

The spelling of 20134465 in words is "twenty million, one hundred thirty-four thousand, four hundred sixty-five".