4181142 has 16 divisors (see below), whose sum is σ = 9556992. Its totient is φ = 1194600.

The previous prime is 4181141. The next prime is 4181171. The reversal of 4181142 is 2411814.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4181141) 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, 49734 + ... + 49817.

It is an arithmetic number, because the mean of its divisors is an integer number (597312).

Almost surely, 2^4181142 is an apocalyptic number.

4181142 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

4181142 is an abundant number, since it is smaller than the sum of its proper divisors (5375850).

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

4181142 is a wasteful number, since it uses less digits than its factorization.

4181142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99563.

The product of its digits is 256, while the sum is 21.

The square root of 4181142 is about 2044.7840961823. The cubic root of 4181142 is about 161.1010258011.

Adding to 4181142 its reverse (2411814), we get a palindrome (6592956).

The spelling of 4181142 in words is "four million, one hundred eighty-one thousand, one hundred forty-two".