12867251 has 6 divisors (see below), whose sum is σ = 13113420. Its totient is φ = 12622076.

The previous prime is 12867247. The next prime is 12867269. The reversal of 12867251 is 15276821.

12867251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12867251 - 2² = 12867247 is a prime.

It is a super-2 number, since 2×12867251² = 331132296594002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12863251) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27320 + ... + 27786.

It is an arithmetic number, because the mean of its divisors is an integer number (2185570).

Almost surely, 2^12867251 is an apocalyptic number.

12867251 is a deficient number, since it is larger than the sum of its proper divisors (246169).

12867251 is an frugal number, since it uses more digits than its factorization.

12867251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993 (or 526 counting only the distinct ones).

The product of its digits is 6720, while the sum is 32.

The square root of 12867251 is about 3587.0950642546. The cubic root of 12867251 is about 234.3303768320.

The spelling of 12867251 in words is "twelve million, eight hundred sixty-seven thousand, two hundred fifty-one".