131238782 has 8 divisors (see below), whose sum is σ = 205417296. Its totient is φ = 62766352.

The previous prime is 131238749. The next prime is 131238799. The reversal of 131238782 is 287832131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1426463 + ... + 1426554.

It is an arithmetic number, because the mean of its divisors is an integer number (25677162).

Almost surely, 2^131238782 is an apocalyptic number.

131238782 is a deficient number, since it is larger than the sum of its proper divisors (74178514).

131238782 is a wasteful number, since it uses less digits than its factorization.

131238782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2853042.

The product of its digits is 16128, while the sum is 35.

The square root of 131238782 is about 11455.9496332692. The cubic root of 131238782 is about 508.1836993481.

The spelling of 131238782 in words is "one hundred thirty-one million, two hundred thirty-eight thousand, seven hundred eighty-two".