20102162 has 8 divisors (see below), whose sum is σ = 31193100. Its totient is φ = 9704464.

The previous prime is 20102153. The next prime is 20102213. The reversal of 20102162 is 26120102.

It can be written as a sum of positive squares in 2 ways, for example, as 20079361 + 22801 = 4481^2 + 151^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173237 + ... + 173352.

Almost surely, 2^20102162 is an apocalyptic number.

20102162 is a deficient number, since it is larger than the sum of its proper divisors (11090938).

20102162 is a wasteful number, since it uses less digits than its factorization.

20102162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346620.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 20102162 is about 4483.5434647163. The cubic root of 20102162 is about 271.9031608122.

Adding to 20102162 its reverse (26120102), we get a palindrome (46222264).

The spelling of 20102162 in words is "twenty million, one hundred two thousand, one hundred sixty-two".