321242095 has 4 divisors (see below), whose sum is σ = 385490520. Its totient is φ = 256993672.

The previous prime is 321242059. The next prime is 321242111. The reversal of 321242095 is 590242123.

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 321242095 - 2⁷ = 321241967 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 32124205 + ... + 32124214.

It is an arithmetic number, because the mean of its divisors is an integer number (96372630).

Almost surely, 2^321242095 is an apocalyptic number.

321242095 is a deficient number, since it is larger than the sum of its proper divisors (64248425).

321242095 is an equidigital number, since it uses as much as digits as its factorization.

321242095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64248424.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 321242095 is about 17923.2278063969. The cubic root of 321242095 is about 684.8742163417.

Adding to 321242095 its sum of digits (28), we get a palindrome (321242123).

The spelling of 321242095 in words is "three hundred twenty-one million, two hundred forty-two thousand, ninety-five".