12142259 has 8 divisors (see below), whose sum is σ = 12450240. Its totient is φ = 11837800.

The previous prime is 12142237. The next prime is 12142261. The reversal of 12142259 is 95224121.

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

It is a cyclic number.

It is not a de Polignac number, because 12142259 - 2¹² = 12138163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12142219) 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, 6944 + ... + 8514.

It is an arithmetic number, because the mean of its divisors is an integer number (1556280).

Almost surely, 2^12142259 is an apocalyptic number.

12142259 is a deficient number, since it is larger than the sum of its proper divisors (307981).

12142259 is a wasteful number, since it uses less digits than its factorization.

12142259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1761.

The product of its digits is 1440, while the sum is 26.

The square root of 12142259 is about 3484.5744359965. The cubic root of 12142259 is about 229.8439962896.

The spelling of 12142259 in words is "twelve million, one hundred forty-two thousand, two hundred fifty-nine".