20146283 has 4 divisors (see below), whose sum is σ = 20155440. Its totient is φ = 20137128.

The previous prime is 20146279. The next prime is 20146319. The reversal of 20146283 is 38264102.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20146283 - 2² = 20146279 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20146223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 938 + ... + 6416.

It is an arithmetic number, because the mean of its divisors is an integer number (5038860).

Almost surely, 2^20146283 is an apocalyptic number.

20146283 is a deficient number, since it is larger than the sum of its proper divisors (9157).

20146283 is an equidigital number, since it uses as much as digits as its factorization.

20146283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9156.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 20146283 is about 4488.4610948520. The cubic root of 20146283 is about 272.1019432973.

The spelling of 20146283 in words is "twenty million, one hundred forty-six thousand, two hundred eighty-three".