12154942 has 16 divisors (see below), whose sum is σ = 18788112. Its totient is φ = 5894080.

The previous prime is 12154937. The next prime is 12154943. The reversal of 12154942 is 24945121.

It is a self number, because there is not a number n which added to its sum of digits gives 12154942.

It is a congruent number.

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18288 + ... + 18940.

It is an arithmetic number, because the mean of its divisors is an integer number (1174257).

Almost surely, 2^12154942 is an apocalyptic number.

12154942 is a deficient number, since it is larger than the sum of its proper divisors (6633170).

12154942 is a wasteful number, since it uses less digits than its factorization.

12154942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923.

The product of its digits is 2880, while the sum is 28.

The square root of 12154942 is about 3486.3938389115. The cubic root of 12154942 is about 229.9239950503.

The spelling of 12154942 in words is "twelve million, one hundred fifty-four thousand, nine hundred forty-two".