12154966 has 16 divisors (see below), whose sum is σ = 19459440. Its totient is φ = 5674240.

The previous prime is 12154963. The next prime is 12154969. The reversal of 12154966 is 66945121.

It is an interprime number because it is at equal distance from previous prime (12154963) and next prime (12154969).

It is a super-2 number, since 2×12154966² = 295486396922312, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12154963) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 3090 + ... + 5818.

It is an arithmetic number, because the mean of its divisors is an integer number (1216215).

Almost surely, 2^12154966 is an apocalyptic number.

12154966 is a deficient number, since it is larger than the sum of its proper divisors (7304474).

12154966 is a wasteful number, since it uses less digits than its factorization.

12154966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2879.

The product of its digits is 12960, while the sum is 34.

The square root of 12154966 is about 3486.3972808617. The cubic root of 12154966 is about 229.9241463789.

The spelling of 12154966 in words is "twelve million, one hundred fifty-four thousand, nine hundred sixty-six".