12250087 has 4 divisors (see below), whose sum is σ = 12261400. Its totient is φ = 12238776.

The previous prime is 12250061. The next prime is 12250097. The reversal of 12250087 is 78005221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78005221 = 7 ⋅11143603.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12250087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12250097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3837 + ... + 6262.

It is an arithmetic number, because the mean of its divisors is an integer number (3065350).

Almost surely, 2^12250087 is an apocalyptic number.

12250087 is a deficient number, since it is larger than the sum of its proper divisors (11313).

12250087 is a wasteful number, since it uses less digits than its factorization.

12250087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11312.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 12250087 is about 3500.0124285494. The cubic root of 12250087 is about 230.5223603267.

The spelling of 12250087 in words is "twelve million, two hundred fifty thousand, eighty-seven".