1325652961 has 4 divisors (see below), whose sum is σ = 1325822212. Its totient is φ = 1325483712.

The previous prime is 1325652941. The next prime is 1325652973. The reversal of 1325652961 is 1692565231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 132365025 + 1193287936 = 11505^2 + 34544^2 .

It is a cyclic number.

It is not a de Polignac number, because 1325652961 - 2⁵ = 1325652929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1325652931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72276 + ... + 88741.

It is an arithmetic number, because the mean of its divisors is an integer number (331455553).

Almost surely, 2^1325652961 is an apocalyptic number.

It is an amenable number.

1325652961 is a deficient number, since it is larger than the sum of its proper divisors (169251).

1325652961 is an equidigital number, since it uses as much as digits as its factorization.

1325652961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169250.

The product of its digits is 97200, while the sum is 40.

The square root of 1325652961 is about 36409.5174507985. The cubic root of 1325652961 is about 1098.5250095702.

The spelling of 1325652961 in words is "one billion, three hundred twenty-five million, six hundred fifty-two thousand, nine hundred sixty-one".