1325565201 has 4 divisors (see below), whose sum is σ = 1767420272. Its totient is φ = 883710132.

The previous prime is 1325565181. The next prime is 1325565209. The reversal of 1325565201 is 1025655231.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1025655231 = 3 ⋅341885077.

It is not a de Polignac number, because 1325565201 - 2⁹ = 1325564689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1325565209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220927531 + ... + 220927536.

It is an arithmetic number, because the mean of its divisors is an integer number (441855068).

Almost surely, 2^1325565201 is an apocalyptic number.

It is an amenable number.

1325565201 is a deficient number, since it is larger than the sum of its proper divisors (441855071).

1325565201 is an equidigital number, since it uses as much as digits as its factorization.

1325565201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441855070.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 1325565201 is about 36408.3122514626. The cubic root of 1325565201 is about 1098.5007677600.

The spelling of 1325565201 in words is "one billion, three hundred twenty-five million, five hundred sixty-five thousand, two hundred one".