12451142 has 24 divisors (see below), whose sum is σ = 21431088. Its totient is φ = 5411120.

The previous prime is 12451141. The next prime is 12451147. The reversal of 12451142 is 24115421.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12451141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4448 + ... + 6684.

It is an arithmetic number, because the mean of its divisors is an integer number (892962).

Almost surely, 2^12451142 is an apocalyptic number.

12451142 is a deficient number, since it is larger than the sum of its proper divisors (8979946).

12451142 is a wasteful number, since it uses less digits than its factorization.

12451142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2284 (or 2273 counting only the distinct ones).

The product of its digits is 320, while the sum is 20.

The square root of 12451142 is about 3528.6175763321. The cubic root of 12451142 is about 231.7766752060.

Adding to 12451142 its reverse (24115421), we get a palindrome (36566563).

It can be divided in two parts, 12 and 451142, that added together give a palindrome (451154).

The spelling of 12451142 in words is "twelve million, four hundred fifty-one thousand, one hundred forty-two".