20134973 has 2 divisors, whose sum is σ = 20134974. Its totient is φ = 20134972.

The previous prime is 20134957. The next prime is 20134979. The reversal of 20134973 is 37943102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11002489 + 9132484 = 3317^2 + 3022^2 .

It is a cyclic number.

It is not a de Polignac number, because 20134973 - 2⁴ = 20134957 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20134979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10067486 + 10067487.

It is an arithmetic number, because the mean of its divisors is an integer number (10067487).

Almost surely, 2^20134973 is an apocalyptic number.

It is an amenable number.

20134973 is a deficient number, since it is larger than the sum of its proper divisors (1).

20134973 is an equidigital number, since it uses as much as digits as its factorization.

20134973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 20134973 is about 4487.2010206809. The cubic root of 20134973 is about 272.0510149771.

The spelling of 20134973 in words is "twenty million, one hundred thirty-four thousand, nine hundred seventy-three".