12290127 has 8 divisors (see below), whose sum is σ = 16540416. Its totient is φ = 8116632.

The previous prime is 12290123. The next prime is 12290129. The reversal of 12290127 is 72109221.

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

It is not a de Polignac number, because 12290127 - 2² = 12290123 is a prime.

It is a super-2 number, since 2×12290127² = 302094443352258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12290097 and 12290106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12290123) 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, 18823 + ... + 19464.

It is an arithmetic number, because the mean of its divisors is an integer number (2067552).

Almost surely, 2^12290127 is an apocalyptic number.

12290127 is a deficient number, since it is larger than the sum of its proper divisors (4250289).

12290127 is a wasteful number, since it uses less digits than its factorization.

12290127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38397.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 12290127 is about 3505.7277418533. The cubic root of 12290127 is about 230.7732449985.

Adding to 12290127 its reverse (72109221), we get a palindrome (84399348).

The spelling of 12290127 in words is "twelve million, two hundred ninety thousand, one hundred twenty-seven".