12115425 has 48 divisors (see below), whose sum is σ = 23427072. Its totient is φ = 5409600.

The previous prime is 12115421. The next prime is 12115463. The reversal of 12115425 is 52451121.

It is not a de Polignac number, because 12115425 - 2² = 12115421 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (12115421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24430 + ... + 24920.

It is an arithmetic number, because the mean of its divisors is an integer number (488064).

Almost surely, 2^12115425 is an apocalyptic number.

12115425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12115425 is a deficient number, since it is larger than the sum of its proper divisors (11311647).

12115425 is a wasteful number, since it uses less digits than its factorization.

12115425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558 (or 553 counting only the distinct ones).

The product of its digits is 400, while the sum is 21.

The square root of 12115425 is about 3480.7219078806. The cubic root of 12115425 is about 229.6745554739.

Adding to 12115425 its reverse (52451121), we get a palindrome (64566546).

The spelling of 12115425 in words is "twelve million, one hundred fifteen thousand, four hundred twenty-five".