131829785 has 8 divisors (see below), whose sum is σ = 158340096. Its totient is φ = 105367600.

The previous prime is 131829773. The next prime is 131829821. The reversal of 131829785 is 587928131.

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

It is a de Polignac number, because none of the positive numbers 2^k-131829785 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5699 + ... + 17208.

It is an arithmetic number, because the mean of its divisors is an integer number (19792512).

Almost surely, 2^131829785 is an apocalyptic number.

It is an amenable number.

131829785 is a deficient number, since it is larger than the sum of its proper divisors (26510311).

131829785 is a wasteful number, since it uses less digits than its factorization.

131829785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24063.

The product of its digits is 120960, while the sum is 44.

The square root of 131829785 is about 11481.7152464255. The cubic root of 131829785 is about 508.9453857359.

The spelling of 131829785 in words is "one hundred thirty-one million, eight hundred twenty-nine thousand, seven hundred eighty-five".