331426273 has 2 divisors, whose sum is σ = 331426274. Its totient is φ = 331426272.

The previous prime is 331426267. The next prime is 331426313. The reversal of 331426273 is 372624133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 301647424 + 29778849 = 17368^2 + 5457^2 .

It is a cyclic number.

It is not a de Polignac number, because 331426273 - 2¹³ = 331418081 is a prime.

It is not a weakly prime, because it can be changed into another prime (331426223) 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 as a sum of consecutive naturals, namely, 165713136 + 165713137.

It is an arithmetic number, because the mean of its divisors is an integer number (165713137).

Almost surely, 2^331426273 is an apocalyptic number.

It is an amenable number.

331426273 is a deficient number, since it is larger than the sum of its proper divisors (1).

331426273 is an equidigital number, since it uses as much as digits as its factorization.

331426273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 31.

The square root of 331426273 is about 18205.1166708703. The cubic root of 331426273 is about 692.0364628508.

The spelling of 331426273 in words is "three hundred thirty-one million, four hundred twenty-six thousand, two hundred seventy-three".