1322142 has 8 divisors (see below), whose sum is σ = 2644296. Its totient is φ = 440712.

The previous prime is 1322137. The next prime is 1322143. The reversal of 1322142 is 2412231.

It is a sphenic number, since it is the product of 3 distinct primes.

1322142 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110173 + ... + 110184.

It is an arithmetic number, because the mean of its divisors is an integer number (330537).

2^1322142 is an apocalyptic number.

1322142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1322142 is a wasteful number, since it uses less digits than its factorization.

1322142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220362.

The product of its digits is 96, while the sum is 15.

The square root of 1322142 is about 1149.8443372909. The cubic root of 1322142 is about 109.7554346169.

Adding to 1322142 its reverse (2412231), we get a palindrome (3734373).

It can be divided in two parts, 13 and 22142, that added together give a triangular number (22155 = T₂₁₀).

The spelling of 1322142 in words is "one million, three hundred twenty-two thousand, one hundred forty-two".