1321325146 has 8 divisors (see below), whose sum is σ = 1995290100. Its totient is φ = 656228448.

The previous prime is 1321325143. The next prime is 1321325177. The reversal of 1321325146 is 6415231231.

It can be written as a sum of positive squares in 2 ways, for example, as 997864921 + 323460225 = 31589^2 + 17985^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1321325143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2216691 + ... + 2217286.

Almost surely, 2^1321325146 is an apocalyptic number.

1321325146 is a deficient number, since it is larger than the sum of its proper divisors (673964954).

1321325146 is a wasteful number, since it uses less digits than its factorization.

1321325146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4434128.

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

The square root of 1321325146 is about 36350.0363961303. The cubic root of 1321325146 is about 1097.3282669841.

Adding to 1321325146 its reverse (6415231231), we get a palindrome (7736556377).

The spelling of 1321325146 in words is "one billion, three hundred twenty-one million, three hundred twenty-five thousand, one hundred forty-six".