12146251 has 8 divisors (see below), whose sum is σ = 13260800. Its totient is φ = 11057472.

The previous prime is 12146221. The next prime is 12146287. The reversal of 12146251 is 15264121.

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

It is a 7-Lehmer number, since φ(12146251) divides (12146251-1)⁷.

It is a cyclic number.

It is not a de Polignac number, because 12146251 - 2⁹ = 12145739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12146201) 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, 5451 + ... + 7348.

It is an arithmetic number, because the mean of its divisors is an integer number (1657600).

Almost surely, 2^12146251 is an apocalyptic number.

12146251 is a deficient number, since it is larger than the sum of its proper divisors (1114549).

12146251 is a wasteful number, since it uses less digits than its factorization.

12146251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12885.

The product of its digits is 480, while the sum is 22.

The square root of 12146251 is about 3485.1471991869. The cubic root of 12146251 is about 229.8691820670.

The spelling of 12146251 in words is "twelve million, one hundred forty-six thousand, two hundred fifty-one".