130819250 has 32 divisors (see below), whose sum is σ = 259307568. Its totient is φ = 49248000.

The previous prime is 130819219. The next prime is 130819277. The reversal of 130819250 is 52918031.

It can be written as a sum of positive squares in 8 ways, for example, as 3964081 + 126855169 = 1991^2 + 11263^2 .

It is a super-2 number, since 2×130819250² = 34227352341125000, which contains 22 as substring.

It is a congruent number.

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, 11141 + ... + 19640.

Almost surely, 2^130819250 is an apocalyptic number.

130819250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

130819250 is a deficient number, since it is larger than the sum of its proper divisors (128488318).

130819250 is a wasteful number, since it uses less digits than its factorization.

130819250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30815 (or 30805 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 130819250 is about 11437.6243162643. The cubic root of 130819250 is about 507.6416164276.

The spelling of 130819250 in words is "one hundred thirty million, eight hundred nineteen thousand, two hundred fifty".