1315231055 has 8 divisors (see below), whose sum is σ = 1632700800. Its totient is φ = 1015902496.

The previous prime is 1315231037. The next prime is 1315231063. The reversal of 1315231055 is 5501325131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1315231055 - 2⁶ = 1315230991 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 4535135 + ... + 4535424.

It is an arithmetic number, because the mean of its divisors is an integer number (204087600).

Almost surely, 2^1315231055 is an apocalyptic number.

1315231055 is a deficient number, since it is larger than the sum of its proper divisors (317469745).

1315231055 is an equidigital number, since it uses as much as digits as its factorization.

1315231055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9070593.

The product of its (nonzero) digits is 2250, while the sum is 26.

The square root of 1315231055 is about 36266.1144182831. The cubic root of 1315231055 is about 1095.6386688615.

Adding to 1315231055 its reverse (5501325131), we get a palindrome (6816556186).

The spelling of 1315231055 in words is "one billion, three hundred fifteen million, two hundred thirty-one thousand, fifty-five".