1315903136 has 12 divisors (see below), whose sum is σ = 2590684362. Its totient is φ = 657951552.

The previous prime is 1315903129. The next prime is 1315903151. The reversal of 1315903136 is 6313095131.

It can be written as a sum of positive squares in only one way, i.e., 1065630736 + 250272400 = 32644^2 + 15820^2 .

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 41121973 = 1315903136 / (1 + 3 + 1 + 5 + 9 + 0 + 3 + 1 + 3 + 6).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20560955 + ... + 20561018.

Almost surely, 2^1315903136 is an apocalyptic number.

1315903136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1315903136 is a deficient number, since it is larger than the sum of its proper divisors (1274781226).

1315903136 is an equidigital number, since it uses as much as digits as its factorization.

1315903136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41121983 (or 41121975 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 32.

The square root of 1315903136 is about 36275.3791985694. The cubic root of 1315903136 is about 1095.8252602945.

Adding to 1315903136 its reverse (6313095131), we get a palindrome (7628998267).

The spelling of 1315903136 in words is "one billion, three hundred fifteen million, nine hundred three thousand, one hundred thirty-six".