136131829 has 6 divisors (see below), whose sum is σ = 140988770. Its totient is φ = 131436816.

The previous prime is 136131817. The next prime is 136131833. The reversal of 136131829 is 928131631.

136131829 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 35129329 + 101002500 = 5927^2 + 10050^2 .

It is a de Polignac number, because none of the positive numbers 2^k-136131829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 136131794 and 136131803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136131899) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 80094 + ... + 81775.

Almost surely, 2^136131829 is an apocalyptic number.

It is an amenable number.

136131829 is a deficient number, since it is larger than the sum of its proper divisors (4856941).

136131829 is an equidigital number, since it uses as much as digits as its factorization.

136131829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161927 (or 161898 counting only the distinct ones).

The product of its digits is 7776, while the sum is 34.

The square root of 136131829 is about 11667.5545424052. The cubic root of 136131829 is about 514.4224259822.

The spelling of 136131829 in words is "one hundred thirty-six million, one hundred thirty-one thousand, eight hundred twenty-nine".