1321710955 has 8 divisors (see below), whose sum is σ = 1586270304. Its totient is φ = 1057224000.

The previous prime is 1321710881. The next prime is 1321710961. The reversal of 1321710955 is 5590171231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1321710955 - 2²¹ = 1319613803 is a prime.

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 1321710955.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 37735 + ... + 63775.

It is an arithmetic number, because the mean of its divisors is an integer number (198283788).

Almost surely, 2^1321710955 is an apocalyptic number.

1321710955 is a deficient number, since it is larger than the sum of its proper divisors (264559349).

1321710955 is a wasteful number, since it uses less digits than its factorization.

1321710955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36197.

The product of its (nonzero) digits is 9450, while the sum is 34.

The square root of 1321710955 is about 36355.3428673146. The cubic root of 1321710955 is about 1097.4350582419.

The spelling of 1321710955 in words is "one billion, three hundred twenty-one million, seven hundred ten thousand, nine hundred fifty-five".