20068133 has 4 divisors (see below), whose sum is σ = 20322240. Its totient is φ = 19814028.

The previous prime is 20068117. The next prime is 20068141. The reversal of 20068133 is 33186002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33186002 = 2 ⋅16593001.

It is a cyclic number.

It is not a de Polignac number, because 20068133 - 2⁴ = 20068117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20068099 and 20068108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20068163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126935 + ... + 127092.

It is an arithmetic number, because the mean of its divisors is an integer number (5080560).

Almost surely, 2^20068133 is an apocalyptic number.

It is an amenable number.

20068133 is a deficient number, since it is larger than the sum of its proper divisors (254107).

20068133 is an equidigital number, since it uses as much as digits as its factorization.

20068133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254106.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 20068133 is about 4479.7469794621. The cubic root of 20068133 is about 271.7496479958.

The spelling of 20068133 in words is "twenty million, sixty-eight thousand, one hundred thirty-three".