12149242 has 8 divisors (see below), whose sum is σ = 20827296. Its totient is φ = 5206812.

The previous prime is 12149233. The next prime is 12149257. The reversal of 12149242 is 24294121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 433888 + ... + 433915.

It is an arithmetic number, because the mean of its divisors is an integer number (2603412).

Almost surely, 2^12149242 is an apocalyptic number.

12149242 is a deficient number, since it is larger than the sum of its proper divisors (8678054).

12149242 is an equidigital number, since it uses as much as digits as its factorization.

12149242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867812.

The product of its digits is 1152, while the sum is 25.

The square root of 12149242 is about 3485.5762794694. The cubic root of 12149242 is about 229.8880488569. Note that the first 3 decimals are identical.

The spelling of 12149242 in words is "twelve million, one hundred forty-nine thousand, two hundred forty-two".