12951869 has 4 divisors (see below), whose sum is σ = 14802144. Its totient is φ = 11101596.

The previous prime is 12951853. The next prime is 12951871. The reversal of 12951869 is 96815921.

It is a happy number.

12951869 is digitally balanced in base 2, base 3 and base 8, because in such bases it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 96815921 = 317 ⋅305413.

It is a cyclic number.

It is not a de Polignac number, because 12951869 - 2⁴ = 12951853 is a prime.

It is a super-2 number, since 2×12951869² = 335501821186322, which contains 22 as substring.

12951869 is strictly pandigital in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12951889) 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, 925127 + ... + 925140.

It is an arithmetic number, because the mean of its divisors is an integer number (3700536).

Almost surely, 2^12951869 is an apocalyptic number.

It is an amenable number.

12951869 is a deficient number, since it is larger than the sum of its proper divisors (1850275).

12951869 is an equidigital number, since it uses as much as digits as its factorization.

12951869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1850274.

The product of its digits is 38880, while the sum is 41.

The square root of 12951869 is about 3598.8705172595. The cubic root of 12951869 is about 234.8429250625.

The spelling of 12951869 in words is "twelve million, nine hundred fifty-one thousand, eight hundred sixty-nine".