1325662487 has 2 divisors, whose sum is σ = 1325662488. Its totient is φ = 1325662486.

The previous prime is 1325662463. The next prime is 1325662489. The reversal of 1325662487 is 7842665231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1325662487 - 2⁸ = 1325662231 is a prime.

Together with 1325662489, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1325662489) 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 as a sum of consecutive naturals, namely, 662831243 + 662831244.

It is an arithmetic number, because the mean of its divisors is an integer number (662831244).

Almost surely, 2^1325662487 is an apocalyptic number.

1325662487 is a deficient number, since it is larger than the sum of its proper divisors (1).

1325662487 is an equidigital number, since it uses as much as digits as its factorization.

1325662487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 483840, while the sum is 44.

The square root of 1325662487 is about 36409.6482680072. The cubic root of 1325662487 is about 1098.5276408581.

The spelling of 1325662487 in words is "one billion, three hundred twenty-five million, six hundred sixty-two thousand, four hundred eighty-seven".