1322742131 has 4 divisors (see below), whose sum is σ = 1365411264. Its totient is φ = 1280073000.

The previous prime is 1322742089. The next prime is 1322742151. The reversal of 1322742131 is 1312472231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1322742131 - 2⁶ = 1322742067 is a prime.

It is a super-2 number, since 2×1322742131² = 3499293490244842322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1322742131.

It is not an unprimeable number, because it can be changed into a prime (1322742151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21334520 + ... + 21334581.

It is an arithmetic number, because the mean of its divisors is an integer number (341352816).

Almost surely, 2^1322742131 is an apocalyptic number.

1322742131 is a deficient number, since it is larger than the sum of its proper divisors (42669133).

1322742131 is an equidigital number, since it uses as much as digits as its factorization.

1322742131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42669132.

The product of its digits is 2016, while the sum is 26.

The square root of 1322742131 is about 36369.5220067573. The cubic root of 1322742131 is about 1097.7203839957.

The spelling of 1322742131 in words is "one billion, three hundred twenty-two million, seven hundred forty-two thousand, one hundred thirty-one".