12290143 has 2 divisors, whose sum is σ = 12290144. Its totient is φ = 12290142.

The previous prime is 12290141. The next prime is 12290147. The reversal of 12290143 is 34109221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12290143 - 2¹ = 12290141 is a prime.

It is a super-2 number, since 2×12290143² = 302095229920898, which contains 22 as substring.

Together with 12290141, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12290141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6145071 + 6145072.

It is an arithmetic number, because the mean of its divisors is an integer number (6145072).

Almost surely, 2^12290143 is an apocalyptic number.

12290143 is a deficient number, since it is larger than the sum of its proper divisors (1).

12290143 is an equidigital number, since it uses as much as digits as its factorization.

12290143 is an evil number, because the sum of its binary digits is even.

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

The square root of 12290143 is about 3505.7300238324. The cubic root of 12290143 is about 230.7733451432.

Adding to 12290143 its reverse (34109221), we get a palindrome (46399364).

The spelling of 12290143 in words is "twelve million, two hundred ninety thousand, one hundred forty-three".