1316729525 has 6 divisors (see below), whose sum is σ = 1632744642. Its totient is φ = 1053383600.

The previous prime is 1316729501. The next prime is 1316729593. The reversal of 1316729525 is 5259276131.

It can be written as a sum of positive squares in 3 ways, for example, as 24039409 + 1292690116 = 4903^2 + 35954^2 .

It is not a de Polignac number, because 1316729525 - 2¹⁴ = 1316713141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26334566 + ... + 26334615.

It is an arithmetic number, because the mean of its divisors is an integer number (272124107).

Almost surely, 2^1316729525 is an apocalyptic number.

It is an amenable number.

1316729525 is a deficient number, since it is larger than the sum of its proper divisors (316015117).

1316729525 is an equidigital number, since it uses as much as digits as its factorization.

1316729525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52669191 (or 52669186 counting only the distinct ones).

The product of its digits is 113400, while the sum is 41.

The square root of 1316729525 is about 36286.7679051194. The cubic root of 1316729525 is about 1096.0546055541.

The spelling of 1316729525 in words is "one billion, three hundred sixteen million, seven hundred twenty-nine thousand, five hundred twenty-five".