12642235 has 8 divisors (see below), whose sum is σ = 15189840. Its totient is φ = 10101024.

The previous prime is 12642211. The next prime is 12642263. The reversal of 12642235 is 53224621.

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 12642235 - 2⁹ = 12641723 is a prime.

It is a super-2 number, since 2×12642235² = 319652211590450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6429 + ... + 8161.

It is an arithmetic number, because the mean of its divisors is an integer number (1898730).

Almost surely, 2^12642235 is an apocalyptic number.

12642235 is a deficient number, since it is larger than the sum of its proper divisors (2547605).

12642235 is a wasteful number, since it uses less digits than its factorization.

12642235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3197.

The product of its digits is 2880, while the sum is 25.

The square root of 12642235 is about 3555.5920744652. The cubic root of 12642235 is about 232.9563857039.

Adding to 12642235 its reverse (53224621), we get a palindrome (65866856).

The spelling of 12642235 in words is "twelve million, six hundred forty-two thousand, two hundred thirty-five".