20143192 has 32 divisors (see below), whose sum is σ = 40230000. Its totient is φ = 9427968.

The previous prime is 20143171. The next prime is 20143219. The reversal of 20143192 is 29134102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12784 + ... + 14272.

Almost surely, 2^20143192 is an apocalyptic number.

It is an amenable number.

20143192 is a deficient number, since it is larger than the sum of its proper divisors (20086808).

20143192 is a wasteful number, since it uses less digits than its factorization.

20143192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1603 (or 1599 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 20143192 is about 4488.1167542746. The cubic root of 20143192 is about 272.0880265841.

Adding to 20143192 its reverse (29134102), we get a palindrome (49277294).

The spelling of 20143192 in words is "twenty million, one hundred forty-three thousand, one hundred ninety-two".