12145912 has 8 divisors (see below), whose sum is σ = 22773600. Its totient is φ = 6072952.

The previous prime is 12145907. The next prime is 12145937. The reversal of 12145912 is 21954121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 759112 + ... + 759127.

It is an arithmetic number, because the mean of its divisors is an integer number (2846700).

Almost surely, 2^12145912 is an apocalyptic number.

It is an amenable number.

12145912 is a deficient number, since it is larger than the sum of its proper divisors (10627688).

12145912 is a wasteful number, since it uses less digits than its factorization.

12145912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1518245 (or 1518241 counting only the distinct ones).

The product of its digits is 720, while the sum is 25.

The square root of 12145912 is about 3485.0985638860. The cubic root of 12145912 is about 229.8670435093.

It can be divided in two parts, 12 and 145912, that added together give a square (145924 = 382²).

The spelling of 12145912 in words is "twelve million, one hundred forty-five thousand, nine hundred twelve".