421142 has 16 divisors (see below), whose sum is σ = 665280. Its totient is φ = 199752.

The previous prime is 421133. The next prime is 421147. The reversal of 421142 is 241124.

421142 is digitally balanced in base 3, 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 (421147) 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, 5033 + ... + 5115.

It is an arithmetic number, because the mean of its divisors is an integer number (41580).

2⁴²¹¹⁴² is an apocalyptic number.

421142 is a deficient number, since it is larger than the sum of its proper divisors (244138).

421142 is a wasteful number, since it uses less digits than its factorization.

421142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187.

The product of its digits is 64, while the sum is 14.

The square root of 421142 is about 648.9545438627. The cubic root of 421142 is about 74.9565377816.

Adding to 421142 its reverse (241124), we get a palindrome (662266).

The spelling of 421142 in words is "four hundred twenty-one thousand, one hundred forty-two", and thus it is an iban number.