321296461 has 2 divisors, whose sum is σ = 321296462. Its totient is φ = 321296460.

The previous prime is 321296429. The next prime is 321296471. The reversal of 321296461 is 164692123.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 198640836 + 122655625 = 14094^2 + 11075^2 .

It is an emirp because it is prime and its reverse (164692123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 321296461 - 2⁵ = 321296429 is a prime.

It is a super-2 number, since 2×321296461² = 206462831702249042, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321296401) 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, 160648230 + 160648231.

It is an arithmetic number, because the mean of its divisors is an integer number (160648231).

Almost surely, 2^321296461 is an apocalyptic number.

It is an amenable number.

321296461 is a deficient number, since it is larger than the sum of its proper divisors (1).

321296461 is an equidigital number, since it uses as much as digits as its factorization.

321296461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 34.

The square root of 321296461 is about 17924.7443775358. The cubic root of 321296461 is about 684.9128494805.

The spelling of 321296461 in words is "three hundred twenty-one million, two hundred ninety-six thousand, four hundred sixty-one".