131066829 has 20 divisors (see below), whose sum is σ = 198001980. Its totient is φ = 86391360.

The previous prime is 131066801. The next prime is 131066851. The reversal of 131066829 is 928660131.

It can be written as a sum of positive squares in 2 ways, for example, as 80514729 + 50552100 = 8973^2 + 7110^2 .

It is not a de Polignac number, because 131066829 - 2⁷ = 131066701 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131066793 and 131066802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131066869) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1882 + ... + 16299.

It is an arithmetic number, because the mean of its divisors is an integer number (9900099).

Almost surely, 2^131066829 is an apocalyptic number.

It is an amenable number.

131066829 is a deficient number, since it is larger than the sum of its proper divisors (66935151).

131066829 is an equidigital number, since it uses as much as digits as its factorization.

131066829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18282 (or 18273 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 131066829 is about 11448.4422084404. The cubic root of 131066829 is about 507.9616564876.

The spelling of 131066829 in words is "one hundred thirty-one million, sixty-six thousand, eight hundred twenty-nine".