1315303257 has 8 divisors (see below), whose sum is σ = 1763875584. Its totient is φ = 871799888.

The previous prime is 1315303237. The next prime is 1315303259. The reversal of 1315303257 is 7523035131.

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 1315303257 - 2¹⁴ = 1315286873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1315303259) by changing a digit.

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, 1266633 + ... + 1267670.

It is an arithmetic number, because the mean of its divisors is an integer number (220484448).

Almost surely, 2^1315303257 is an apocalyptic number.

It is an amenable number.

1315303257 is a deficient number, since it is larger than the sum of its proper divisors (448572327).

1315303257 is a wasteful number, since it uses less digits than its factorization.

1315303257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2534479.

The product of its (nonzero) digits is 9450, while the sum is 30.

The square root of 1315303257 is about 36267.1098517651. The cubic root of 1315303257 is about 1095.6587175202.

Adding to 1315303257 its reverse (7523035131), we get a palindrome (8838338388).

The spelling of 1315303257 in words is "one billion, three hundred fifteen million, three hundred three thousand, two hundred fifty-seven".