12763121 has 4 divisors (see below), whose sum is σ = 14586432. Its totient is φ = 10939812.

The previous prime is 12763111. The next prime is 12763123. The reversal of 12763121 is 12136721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12763121 - 2¹⁴ = 12746737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12763123) 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, 911645 + ... + 911658.

It is an arithmetic number, because the mean of its divisors is an integer number (3646608).

Almost surely, 2^12763121 is an apocalyptic number.

It is an amenable number.

12763121 is a deficient number, since it is larger than the sum of its proper divisors (1823311).

12763121 is an equidigital number, since it uses as much as digits as its factorization.

12763121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1823310.

The product of its digits is 504, while the sum is 23.

The square root of 12763121 is about 3572.5510493204. The cubic root of 12763121 is about 233.6965470157.

Adding to 12763121 its reverse (12136721), we get a palindrome (24899842).

The spelling of 12763121 in words is "twelve million, seven hundred sixty-three thousand, one hundred twenty-one".