1315587841 has 4 divisors (see below), whose sum is σ = 1337886000. Its totient is φ = 1293289684.

The previous prime is 1315587773. The next prime is 1315587851. The reversal of 1315587841 is 1487855131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1315587841 - 2¹¹ = 1315585793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1315587851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11148991 + ... + 11149108.

It is an arithmetic number, because the mean of its divisors is an integer number (334471500).

Almost surely, 2^1315587841 is an apocalyptic number.

It is an amenable number.

1315587841 is a deficient number, since it is larger than the sum of its proper divisors (22298159).

1315587841 is an equidigital number, since it uses as much as digits as its factorization.

1315587841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22298158.

The product of its digits is 134400, while the sum is 43.

The square root of 1315587841 is about 36271.0330842671. The cubic root of 1315587841 is about 1095.7377321133.

The spelling of 1315587841 in words is "one billion, three hundred fifteen million, five hundred eighty-seven thousand, eight hundred forty-one".