12151564 has 24 divisors (see below), whose sum is σ = 22503600. Its totient is φ = 5725440.

The previous prime is 12151553. The next prime is 12151603. The reversal of 12151564 is 46515121.

It is a happy number.

12151564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21072 + ... + 21640.

It is an arithmetic number, because the mean of its divisors is an integer number (937650).

Almost surely, 2^12151564 is an apocalyptic number.

It is an amenable number.

12151564 is a deficient number, since it is larger than the sum of its proper divisors (10352036).

12151564 is a wasteful number, since it uses less digits than its factorization.

12151564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873 (or 871 counting only the distinct ones).

The product of its digits is 1200, while the sum is 25.

The square root of 12151564 is about 3485.9093505139. The cubic root of 12151564 is about 229.9026935578.

Adding to 12151564 its reverse (46515121), we get a palindrome (58666685).

The spelling of 12151564 in words is "twelve million, one hundred fifty-one thousand, five hundred sixty-four".