636146 has 8 divisors (see below), whose sum is σ = 1090560. Its totient is φ = 272628.

The previous prime is 636137. The next prime is 636149. The reversal of 636146 is 641636.

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

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 636146.

It is not an unprimeable number, because it can be changed into a prime (636149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22706 + ... + 22733.

It is an arithmetic number, because the mean of its divisors is an integer number (136320).

2⁶³⁶¹⁴⁶ is an apocalyptic number.

636146 is a deficient number, since it is larger than the sum of its proper divisors (454414).

636146 is a wasteful number, since it uses less digits than its factorization.

636146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45448.

The product of its digits is 2592, while the sum is 26.

The square root of 636146 is about 797.5876127423. The cubic root of 636146 is about 86.0040560553.

The spelling of 636146 in words is "six hundred thirty-six thousand, one hundred forty-six".