12154946 has 16 divisors (see below), whose sum is σ = 19388160. Its totient is φ = 5698800.

The previous prime is 12154943. The next prime is 12154957. The reversal of 12154946 is 64945121.

It is not an unprimeable number, because it can be changed into a prime (12154943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2255 + ... + 5421.

It is an arithmetic number, because the mean of its divisors is an integer number (1211760).

Almost surely, 2^12154946 is an apocalyptic number.

12154946 is a deficient number, since it is larger than the sum of its proper divisors (7233214).

12154946 is a wasteful number, since it uses less digits than its factorization.

12154946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3289.

The product of its digits is 8640, while the sum is 32.

The square root of 12154946 is about 3486.3944125701. The cubic root of 12154946 is about 229.9240202717.

It can be divided in two parts, 121 and 54946, that multiplied together give a palindrome (6648466).

The spelling of 12154946 in words is "twelve million, one hundred fifty-four thousand, nine hundred forty-six".