131836829 has 4 divisors (see below), whose sum is σ = 131891100. Its totient is φ = 131782560.

The previous prime is 131836823. The next prime is 131836879. The reversal of 131836829 is 928638131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 64432729 + 67404100 = 8027^2 + 8210^2 .

It is a cyclic number.

It is not a de Polignac number, because 131836829 - 2¹⁶ = 131771293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131836823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23312 + ... + 28409.

It is an arithmetic number, because the mean of its divisors is an integer number (32972775).

Almost surely, 2^131836829 is an apocalyptic number.

It is an amenable number.

131836829 is a deficient number, since it is larger than the sum of its proper divisors (54271).

131836829 is an equidigital number, since it uses as much as digits as its factorization.

131836829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54270.

The product of its digits is 62208, while the sum is 41.

The square root of 131836829 is about 11482.0219909213. The cubic root of 131836829 is about 508.9544503224.

The spelling of 131836829 in words is "one hundred thirty-one million, eight hundred thirty-six thousand, eight hundred twenty-nine".