1321736675 has 12 divisors (see below), whose sum is σ = 1873089936. Its totient is φ = 906333600.

The previous prime is 1321736659. The next prime is 1321736687. The reversal of 1321736675 is 5766371231.

It is a happy number.

It is not a de Polignac number, because 1321736675 - 2⁴ = 1321736659 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3776216 + ... + 3776565.

It is an arithmetic number, because the mean of its divisors is an integer number (156090828).

Almost surely, 2^1321736675 is an apocalyptic number.

1321736675 is a deficient number, since it is larger than the sum of its proper divisors (551353261).

1321736675 is an equidigital number, since it uses as much as digits as its factorization.

1321736675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7552798 (or 7552793 counting only the distinct ones).

The product of its digits is 158760, while the sum is 41.

The square root of 1321736675 is about 36355.6965962695. The cubic root of 1321736675 is about 1097.4421767541.

The spelling of 1321736675 in words is "one billion, three hundred twenty-one million, seven hundred thirty-six thousand, six hundred seventy-five".