36638129 has 4 divisors (see below), whose sum is σ = 39968880. Its totient is φ = 33307380.

The previous prime is 36638123. The next prime is 36638141. The reversal of 36638129 is 92183663.

36638129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36638129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 36638092 and 36638101.

It is not an unprimeable number, because it can be changed into a prime (36638123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1665359 + ... + 1665380.

It is an arithmetic number, because the mean of its divisors is an integer number (9992220).

Almost surely, 2^36638129 is an apocalyptic number.

It is an amenable number.

36638129 is a deficient number, since it is larger than the sum of its proper divisors (3330751).

36638129 is a wasteful number, since it uses less digits than its factorization.

36638129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3330750.

The product of its digits is 46656, while the sum is 38.

The square root of 36638129 is about 6052.9438292454. The cubic root of 36638129 is about 332.1322868821.

The spelling of 36638129 in words is "thirty-six million, six hundred thirty-eight thousand, one hundred twenty-nine".