1313173850 has 12 divisors (see below), whose sum is σ = 2442503454. Its totient is φ = 525269520.

The previous prime is 1313173837. The next prime is 1313173867. The reversal of 1313173850 is 583713131.

It can be written as a sum of positive squares in 3 ways, for example, as 1124193841 + 188980009 = 33529^2 + 13747^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13131689 + ... + 13131788.

Almost surely, 2^1313173850 is an apocalyptic number.

1313173850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1313173850 is a deficient number, since it is larger than the sum of its proper divisors (1129329604).

1313173850 is a wasteful number, since it uses less digits than its factorization.

1313173850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26263489 (or 26263484 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 1313173850 is about 36237.7406856443. The cubic root of 1313173850 is about 1095.0671268176.

Adding to 1313173850 its reverse (583713131), we get a palindrome (1896886981).

The spelling of 1313173850 in words is "one billion, three hundred thirteen million, one hundred seventy-three thousand, eight hundred fifty".