1421142 has 32 divisors (see below), whose sum is σ = 2993760. Its totient is φ = 449280.

The previous prime is 1421141. The next prime is 1421153. The reversal of 1421142 is 2411241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12984 + ... + 13092.

It is an arithmetic number, because the mean of its divisors is an integer number (93555).

2^1421142 is an apocalyptic number.

1421142 is an abundant number, since it is smaller than the sum of its proper divisors (1572618).

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

1421142 is a wasteful number, since it uses less digits than its factorization.

1421142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208.

The product of its digits is 64, while the sum is 15.

The square root of 1421142 is about 1192.1166050349. The cubic root of 1421142 is about 112.4292097858.

Adding to 1421142 its reverse (2411241), we get a palindrome (3832383).

Subtracting 1421142 from its reverse (2411241), we obtain a palindrome (990099).

The spelling of 1421142 in words is "one million, four hundred twenty-one thousand, one hundred forty-two".