12117502 has 8 divisors (see below), whose sum is σ = 18395496. Its totient is φ = 5985672.

The previous prime is 12117491. The next prime is 12117503. The reversal of 12117502 is 20571121.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12117502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12117503) 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, 36333 + ... + 36664.

It is an arithmetic number, because the mean of its divisors is an integer number (2299437).

Almost surely, 2^12117502 is an apocalyptic number.

12117502 is a deficient number, since it is larger than the sum of its proper divisors (6277994).

12117502 is an equidigital number, since it uses as much as digits as its factorization.

12117502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73082.

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 12117502 is about 3481.0202527420. The cubic root of 12117502 is about 229.6876794266.

Adding to 12117502 its reverse (20571121), we get a palindrome (32688623).

The spelling of 12117502 in words is "twelve million, one hundred seventeen thousand, five hundred two".