20143190 has 16 divisors (see below), whose sum is σ = 36873360. Its totient is φ = 7920480.

The previous prime is 20143171. The next prime is 20143219. The reversal of 20143190 is 9134102.

It is a super-3 number, since 3×20143190³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 16481 + ... + 17660.

It is an arithmetic number, because the mean of its divisors is an integer number (2304585).

Almost surely, 2^20143190 is an apocalyptic number.

20143190 is a deficient number, since it is larger than the sum of its proper divisors (16730170).

20143190 is a wasteful number, since it uses less digits than its factorization.

20143190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34207.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 20143190 is about 4488.1165314640. The cubic root of 20143190 is about 272.0880175790.

Adding to 20143190 its reverse (9134102), we get a palindrome (29277292).

The spelling of 20143190 in words is "twenty million, one hundred forty-three thousand, one hundred ninety".