1315161650 has 48 divisors (see below), whose sum is σ = 2825578080. Its totient is φ = 450105600.

The previous prime is 1315161619. The next prime is 1315161719. The reversal of 1315161650 is 561615131.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60980 + ... + 79679.

It is an arithmetic number, because the mean of its divisors is an integer number (58866210).

Almost surely, 2^1315161650 is an apocalyptic number.

1315161650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1315161650 is an abundant number, since it is smaller than the sum of its proper divisors (1510416430).

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

1315161650 is a wasteful number, since it uses less digits than its factorization.

1315161650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140699 (or 140694 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 29.

The square root of 1315161650 is about 36265.1575206837. The cubic root of 1315161650 is about 1095.6193961668.

Adding to 1315161650 its reverse (561615131), we get a palindrome (1876776781).

The spelling of 1315161650 in words is "one billion, three hundred fifteen million, one hundred sixty-one thousand, six hundred fifty".