1322131 has 4 divisors (see below), whose sum is σ = 1344600.
Its totient is φ = 1299664.
The previous prime is 1322129. The next prime is 1322137. The reversal of 1322131 is 1312231.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1312231 = 43 ⋅30517.
It is a cyclic number.
It is not a de Polignac number, because 1322131 - 21 = 1322129 is a prime.
It is a super-3 number, since 3×13221313 = 6933375467624322273, which contains 333 as substring. Note that it is a super-d number also for d = 2.
It is an Ulam number.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (1322137) 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, 11146 + ... + 11263.
It is an arithmetic number, because the mean of its divisors is an integer number (336150).
21322131 is an apocalyptic number.
1322131 is a deficient number, since it is larger than the sum of its proper divisors (22469).
1322131 is an equidigital number, since it uses as much as digits as its factorization.
1322131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 22468.
The product of its digits is 36, while the sum is 13.
The square root of 1322131 is about 1149.8395540248.
The cubic root of 1322131 is about 109.7551302338.
Adding to 1322131 its reverse (1312231), we get a palindrome (2634362).
The spelling of 1322131 in words is "one million, three hundred twenty-two thousand, one hundred thirty-one".