1325987051 has 2 divisors, whose sum is σ = 1325987052. Its totient is φ = 1325987050.

The previous prime is 1325986979. The next prime is 1325987081. The reversal of 1325987051 is 1507895231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1325987051 - 2¹⁰ = 1325986027 is a prime.

It is not a weakly prime, because it can be changed into another prime (1325987081) 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 as a sum of consecutive naturals, namely, 662993525 + 662993526.

It is an arithmetic number, because the mean of its divisors is an integer number (662993526).

Almost surely, 2^1325987051 is an apocalyptic number.

1325987051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1325987051 is an equidigital number, since it uses as much as digits as its factorization.

1325987051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75600, while the sum is 41.

The square root of 1325987051 is about 36414.1051105200. The cubic root of 1325987051 is about 1098.6172849506.

The spelling of 1325987051 in words is "one billion, three hundred twenty-five million, nine hundred eighty-seven thousand, fifty-one".