1325634379 has 4 divisors (see below), whose sum is σ = 1326548176.
Its totient is φ = 1324720584.
The previous prime is 1325634353. The next prime is 1325634383. The reversal of 1325634379 is 9734365231.
It is a happy number.
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 1325634379 - 29 = 1325633867 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (1325634319) 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, 454719 + ... + 457624.
It is an arithmetic number, because the mean of its divisors is an integer number (331637044).
Almost surely, 21325634379 is an apocalyptic number.
1325634379 is a deficient number, since it is larger than the sum of its proper divisors (913797).
1325634379 is an equidigital number, since it uses as much as digits as its factorization.
1325634379 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 913796.
The product of its digits is 408240, while the sum is 43.
The square root of 1325634379 is about 36409.2622693732.
The cubic root of 1325634379 is about 1098.5198767821.
The spelling of 1325634379 in words is "one billion, three hundred twenty-five million, six hundred thirty-four thousand, three hundred seventy-nine".