322742137 has 4 divisors (see below), whose sum is σ = 323843940. Its totient is φ = 321640336.

The previous prime is 322742129. The next prime is 322742143. The reversal of 322742137 is 731247223.

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

It can be written as a sum of positive squares in 2 ways, for example, as 189778176 + 132963961 = 13776^2 + 11531^2 .

It is a cyclic number.

It is not a de Polignac number, because 322742137 - 2³ = 322742129 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 322742099 and 322742108.

It is not an unprimeable number, because it can be changed into a prime (322742107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 550462 + ... + 551047.

It is an arithmetic number, because the mean of its divisors is an integer number (80960985).

Almost surely, 2^322742137 is an apocalyptic number.

It is an amenable number.

322742137 is a deficient number, since it is larger than the sum of its proper divisors (1101803).

322742137 is a wasteful number, since it uses less digits than its factorization.

322742137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101802.

The product of its digits is 14112, while the sum is 31.

The square root of 322742137 is about 17965.0253826706. The cubic root of 322742137 is about 685.9385695543.

The spelling of 322742137 in words is "three hundred twenty-two million, seven hundred forty-two thousand, one hundred thirty-seven".