12290527 has 4 divisors (see below), whose sum is σ = 12320280. Its totient is φ = 12260776.

The previous prime is 12290521. The next prime is 12290567. The reversal of 12290527 is 72509221.

12290527 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12290527 - 2¹⁵ = 12257759 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12290495 and 12290504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12290521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14248 + ... + 15085.

It is an arithmetic number, because the mean of its divisors is an integer number (3080070).

Almost surely, 2^12290527 is an apocalyptic number.

12290527 is a deficient number, since it is larger than the sum of its proper divisors (29753).

12290527 is an equidigital number, since it uses as much as digits as its factorization.

12290527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29752.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 12290527 is about 3505.7847908849. The cubic root of 12290527 is about 230.7757485880.

Adding to 12290527 its reverse (72509221), we get a palindrome (84799748).

The spelling of 12290527 in words is "twelve million, two hundred ninety thousand, five hundred twenty-seven".