12115450 has 12 divisors (see below), whose sum is σ = 22534830. Its totient is φ = 4846160.

The previous prime is 12115421. The next prime is 12115463. The reversal of 12115450 is 5451121.

It can be written as a sum of positive squares in 3 ways, for example, as 11444689 + 670761 = 3383^2 + 819^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 121105 + ... + 121204.

Almost surely, 2^12115450 is an apocalyptic number.

12115450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12115450 is a deficient number, since it is larger than the sum of its proper divisors (10419380).

12115450 is a wasteful number, since it uses less digits than its factorization.

12115450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242321 (or 242316 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 12115450 is about 3480.7254990878. The cubic root of 12115450 is about 229.6747134505.

Adding to 12115450 its reverse (5451121), we get a palindrome (17566571).

The spelling of 12115450 in words is "twelve million, one hundred fifteen thousand, four hundred fifty".