1321345167 has 8 divisors (see below), whose sum is σ = 1765256880. Its totient is φ = 879165120.

The previous prime is 1321345163. The next prime is 1321345189. The reversal of 1321345167 is 7615431231.

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

It is not a de Polignac number, because 1321345167 - 2² = 1321345163 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321345163) 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 in 7 ways as a sum of consecutive naturals, for example, 431134 + ... + 434187.

It is an arithmetic number, because the mean of its divisors is an integer number (220657110).

Almost surely, 2^1321345167 is an apocalyptic number.

1321345167 is a deficient number, since it is larger than the sum of its proper divisors (443911713).

1321345167 is an equidigital number, since it uses as much as digits as its factorization.

1321345167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865833.

The product of its digits is 15120, while the sum is 33.

The square root of 1321345167 is about 36350.3117868334. The cubic root of 1321345167 is about 1097.3338092733. Note that the first 3 decimals are identical.

Adding to 1321345167 its reverse (7615431231), we get a palindrome (8936776398).

The spelling of 1321345167 in words is "one billion, three hundred twenty-one million, three hundred forty-five thousand, one hundred sixty-seven".