1325388917 has 2 divisors, whose sum is σ = 1325388918. Its totient is φ = 1325388916.

The previous prime is 1325388913. The next prime is 1325388929. The reversal of 1325388917 is 7198835231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 964350916 + 361038001 = 31054^2 + 19001^2 .

It is a cyclic number.

It is not a de Polignac number, because 1325388917 - 2² = 1325388913 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1325388913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 662694458 + 662694459.

It is an arithmetic number, because the mean of its divisors is an integer number (662694459).

Almost surely, 2^1325388917 is an apocalyptic number.

It is an amenable number.

1325388917 is a deficient number, since it is larger than the sum of its proper divisors (1).

1325388917 is an equidigital number, since it uses as much as digits as its factorization.

1325388917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 47.

The square root of 1325388917 is about 36405.8912402924. The cubic root of 1325388917 is about 1098.4520698677.

The spelling of 1325388917 in words is "one billion, three hundred twenty-five million, three hundred eighty-eight thousand, nine hundred seventeen".