12770143 has 4 divisors (see below), whose sum is σ = 13115320. Its totient is φ = 12424968.

The previous prime is 12770141. The next prime is 12770189. The reversal of 12770143 is 34107721.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12770143 - 2¹ = 12770141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12770141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172533 + ... + 172606.

It is an arithmetic number, because the mean of its divisors is an integer number (3278830).

Almost surely, 2^12770143 is an apocalyptic number.

12770143 is a deficient number, since it is larger than the sum of its proper divisors (345177).

12770143 is an equidigital number, since it uses as much as digits as its factorization.

12770143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345176.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 12770143 is about 3573.5336853037. The cubic root of 12770143 is about 233.7393974620.

Adding to 12770143 its reverse (34107721), we get a palindrome (46877864).

The spelling of 12770143 in words is "twelve million, seven hundred seventy thousand, one hundred forty-three".