12145842 has 32 divisors (see below), whose sum is σ = 27724800. Its totient is φ = 3938544.

The previous prime is 12145829. The next prime is 12145843. The reversal of 12145842 is 24854121.

12145842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (12145843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1042 + ... + 5037.

It is an arithmetic number, because the mean of its divisors is an integer number (866400).

Almost surely, 2^12145842 is an apocalyptic number.

12145842 is an abundant number, since it is smaller than the sum of its proper divisors (15578958).

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

12145842 is a wasteful number, since it uses less digits than its factorization.

12145842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6127 (or 6121 counting only the distinct ones).

The product of its digits is 2560, while the sum is 27.

The square root of 12145842 is about 3485.0885211139. The cubic root of 12145842 is about 229.8666019142.

Adding to 12145842 its reverse (24854121), we get a palindrome (36999963).

It can be divided in two parts, 1214 and 5842, that added together give a square (7056 = 84²).

The spelling of 12145842 in words is "twelve million, one hundred forty-five thousand, eight hundred forty-two".