12115355 has 16 divisors (see below), whose sum is σ = 16899840. Its totient is φ = 8165472.

The previous prime is 12115351. The next prime is 12115387. The reversal of 12115355 is 55351121.

It is a happy number.

It is not a de Polignac number, because 12115355 - 2² = 12115351 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12115355.

It is not an unprimeable number, because it can be changed into a prime (12115351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 869 + ... + 4998.

It is an arithmetic number, because the mean of its divisors is an integer number (1056240).

Almost surely, 2^12115355 is an apocalyptic number.

12115355 is a deficient number, since it is larger than the sum of its proper divisors (4784485).

12115355 is an equidigital number, since it uses as much as digits as its factorization.

12115355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5938.

The product of its digits is 750, while the sum is 23.

The square root of 12115355 is about 3480.7118524808. The cubic root of 12115355 is about 229.6741131384.

Adding to 12115355 its reverse (55351121), we get a palindrome (67466476).

The spelling of 12115355 in words is "twelve million, one hundred fifteen thousand, three hundred fifty-five".