1315331250 has 192 divisors, whose sum is σ = 3543523200. Its totient is φ = 324800000.

The previous prime is 1315331243. The next prime is 1315331273. The reversal of 1315331250 is 521335131.

It is a self number, because there is not a number n which added to its sum of digits gives 1315331250.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 22293721 + ... + 22293779.

It is an arithmetic number, because the mean of its divisors is an integer number (18455850).

Almost surely, 2^1315331250 is an apocalyptic number.

1315331250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1315331250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1771761600).

1315331250 is an abundant number, since it is smaller than the sum of its proper divisors (2228191950).

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

1315331250 is an equidigital number, since it uses as much as digits as its factorization.

1315331250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 1315331250 is about 36267.4957779001. The cubic root of 1315331250 is about 1095.6664902668. Note that the first 3 decimals are identical.

Adding to 1315331250 its reverse (521335131), we get a palindrome (1836666381).

The spelling of 1315331250 in words is "one billion, three hundred fifteen million, three hundred thirty-one thousand, two hundred fifty".