12247251 has 8 divisors (see below), whose sum is σ = 16892880. Its totient is φ = 7883232.

The previous prime is 12247243. The next prime is 12247253. The reversal of 12247251 is 15274221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12247251 - 2³ = 12247243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12247253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70300 + ... + 70473.

It is an arithmetic number, because the mean of its divisors is an integer number (2111610).

Almost surely, 2^12247251 is an apocalyptic number.

12247251 is a deficient number, since it is larger than the sum of its proper divisors (4645629).

12247251 is a wasteful number, since it uses less digits than its factorization.

12247251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140805.

The product of its digits is 1120, while the sum is 24.

The square root of 12247251 is about 3499.6072636797. The cubic root of 12247251 is about 230.5045696539.

The spelling of 12247251 in words is "twelve million, two hundred forty-seven thousand, two hundred fifty-one".