131250306 has 32 divisors (see below), whose sum is σ = 287417088. Its totient is φ = 39626640.

The previous prime is 131250299. The next prime is 131250331. The reversal of 131250306 is 603052131.

It is a Curzon 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, 15165 + ... + 22191.

It is an arithmetic number, because the mean of its divisors is an integer number (8981784).

Almost surely, 2^131250306 is an apocalyptic number.

131250306 is an abundant number, since it is smaller than the sum of its proper divisors (156166782).

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

131250306 is a wasteful number, since it uses less digits than its factorization.

131250306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7326.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 131250306 is about 11456.4525923167. The cubic root of 131250306 is about 508.1985733497.

The spelling of 131250306 in words is "one hundred thirty-one million, two hundred fifty thousand, three hundred six".