20934113 has 2 divisors, whose sum is σ = 20934114. Its totient is φ = 20934112.

The previous prime is 20934107. The next prime is 20934127. The reversal of 20934113 is 31143902.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20729809 + 204304 = 4553^2 + 452^2 .

It is a cyclic number.

It is not a de Polignac number, because 20934113 - 2⁴ = 20934097 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20934013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10467056 + 10467057.

It is an arithmetic number, because the mean of its divisors is an integer number (10467057).

Almost surely, 2^20934113 is an apocalyptic number.

It is an amenable number.

20934113 is a deficient number, since it is larger than the sum of its proper divisors (1).

20934113 is an equidigital number, since it uses as much as digits as its factorization.

20934113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 20934113 is about 4575.3811863057. The cubic root of 20934113 is about 275.6035800563.

The spelling of 20934113 in words is "twenty million, nine hundred thirty-four thousand, one hundred thirteen".