8135389250 has 32 divisors (see below), whose sum is σ = 15330377088. Its totient is φ = 3232590000.

The previous prime is 8135389181. The next prime is 8135389313. The reversal of 8135389250 is 529835318.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70004 + ... + 145503.

It is an arithmetic number, because the mean of its divisors is an integer number (479074284).

Almost surely, 2^8135389250 is an apocalyptic number.

8135389250 is a deficient number, since it is larger than the sum of its proper divisors (7194987838).

8135389250 is a wasteful number, since it uses less digits than its factorization.

8135389250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215675 (or 215665 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 44.

The square root of 8135389250 is about 90196.3926662258. The cubic root of 8135389250 is about 2011.2193825415.

The spelling of 8135389250 in words is "eight billion, one hundred thirty-five million, three hundred eighty-nine thousand, two hundred fifty".