20134573 has 2 divisors, whose sum is σ = 20134574. Its totient is φ = 20134572.

The previous prime is 20134553. The next prime is 20134603. The reversal of 20134573 is 37543102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17322244 + 2812329 = 4162^2 + 1677^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20134573 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20134553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10067286 + 10067287.

It is an arithmetic number, because the mean of its divisors is an integer number (10067287).

Almost surely, 2^20134573 is an apocalyptic number.

It is an amenable number.

20134573 is a deficient number, since it is larger than the sum of its proper divisors (1).

20134573 is an equidigital number, since it uses as much as digits as its factorization.

20134573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 20134573 is about 4487.1564492449. The cubic root of 20134573 is about 272.0492134496.

Adding to 20134573 its reverse (37543102), we get a palindrome (57677675).

The spelling of 20134573 in words is "twenty million, one hundred thirty-four thousand, five hundred seventy-three".