12149270 has 16 divisors (see below), whose sum is σ = 24992928. Its totient is φ = 4165440.

The previous prime is 12149257. The next prime is 12149273. The reversal of 12149270 is 7294121.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12149273) 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, 86711 + ... + 86850.

It is an arithmetic number, because the mean of its divisors is an integer number (1562058).

Almost surely, 2^12149270 is an apocalyptic number.

12149270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12149270 is an abundant number, since it is smaller than the sum of its proper divisors (12843658).

12149270 is a wasteful number, since it uses less digits than its factorization.

12149270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173575.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 12149270 is about 3485.5802960196. The cubic root of 12149270 is about 229.8882254622. Note that the first 3 decimals are identical.

The spelling of 12149270 in words is "twelve million, one hundred forty-nine thousand, two hundred seventy".