12149142 has 16 divisors (see below), whose sum is σ = 24335472. Its totient is φ = 4043520.

The previous prime is 12149141. The next prime is 12149183. The reversal of 12149142 is 24194121.

12149142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12149141) 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, 4542 + ... + 6702.

It is an arithmetic number, because the mean of its divisors is an integer number (1520967).

Almost surely, 2^12149142 is an apocalyptic number.

12149142 is an abundant number, since it is smaller than the sum of its proper divisors (12186330).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12149142 is a wasteful number, since it uses less digits than its factorization.

12149142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3103.

The product of its digits is 576, while the sum is 24.

The square root of 12149142 is about 3485.5619346097. The cubic root of 12149142 is about 229.8874181216.

The spelling of 12149142 in words is "twelve million, one hundred forty-nine thousand, one hundred forty-two".