1315828250 has 32 divisors (see below), whose sum is σ = 2687166144. Its totient is φ = 478482000.

The previous prime is 1315828247. The next prime is 1315828253. The reversal of 1315828250 is 528285131.

It is an interprime number because it is at equal distance from previous prime (1315828247) and next prime (1315828253).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1315828250.

It is not an unprimeable number, because it can be changed into a prime (1315828253) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 236492 + ... + 241991.

It is an arithmetic number, because the mean of its divisors is an integer number (83973942).

Almost surely, 2^1315828250 is an apocalyptic number.

1315828250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1315828250 is an abundant number, since it is smaller than the sum of its proper divisors (1371337894).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1315828250 is a wasteful number, since it uses less digits than its factorization.

1315828250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478511 (or 478501 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 35.

The square root of 1315828250 is about 36274.3469961900. The cubic root of 1315828250 is about 1095.8044726633.

The spelling of 1315828250 in words is "one billion, three hundred fifteen million, eight hundred twenty-eight thousand, two hundred fifty".