20283166 has 4 divisors (see below), whose sum is σ = 30424752. Its totient is φ = 10141582.

The previous prime is 20283139. The next prime is 20283167. The reversal of 20283166 is 66138202.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×20283166² = 822813645967112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20283167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5070790 + ... + 5070793.

It is an arithmetic number, because the mean of its divisors is an integer number (7606188).

Almost surely, 2^20283166 is an apocalyptic number.

20283166 is a deficient number, since it is larger than the sum of its proper divisors (10141586).

20283166 is a wasteful number, since it uses less digits than its factorization.

20283166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10141585.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 20283166 is about 4503.6836034517. The cubic root of 20283166 is about 272.7168142319.

It can be divided in two parts, 20283 and 166, that added together give a square (20449 = 143²).

The spelling of 20283166 in words is "twenty million, two hundred eighty-three thousand, one hundred sixty-six".