1315551455 has 8 divisors (see below), whose sum is σ = 1579048992. Its totient is φ = 1052183008.

The previous prime is 1315551449. The next prime is 1315551463. The reversal of 1315551455 is 5541555131.

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 1315551455 - 2²⁰ = 1314502879 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 7 ways as a sum of consecutive naturals, for example, 8219 + ... + 51948.

It is an arithmetic number, because the mean of its divisors is an integer number (197381124).

Almost surely, 2^1315551455 is an apocalyptic number.

1315551455 is a deficient number, since it is larger than the sum of its proper divisors (263497537).

1315551455 is an equidigital number, since it uses as much as digits as its factorization.

1315551455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64545.

The product of its digits is 37500, while the sum is 35.

The square root of 1315551455 is about 36270.5314959679. The cubic root of 1315551455 is about 1095.7276301955.

The spelling of 1315551455 in words is "one billion, three hundred fifteen million, five hundred fifty-one thousand, four hundred fifty-five".