636141 has 16 divisors (see below), whose sum is σ = 952128. Its totient is φ = 374400.

The previous prime is 636137. The next prime is 636149. The reversal of 636141 is 141636.

It is not a de Polignac number, because 636141 - 2² = 636137 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 636141.

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

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 961 + ... + 1481.

It is an arithmetic number, because the mean of its divisors is an integer number (59508).

2⁶³⁶¹⁴¹ is an apocalyptic number.

It is an amenable number.

636141 is a deficient number, since it is larger than the sum of its proper divisors (315987).

636141 is a wasteful number, since it uses less digits than its factorization.

636141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572.

The product of its digits is 432, while the sum is 21.

The square root of 636141 is about 797.5844782843. The cubic root of 636141 is about 86.0038307289.

Adding to 636141 its reverse (141636), we get a palindrome (777777).

It can be divided in two parts, 636 and 141, that multiplied together give a triangular number (89676 = T₄₂₃).

The spelling of 636141 in words is "six hundred thirty-six thousand, one hundred forty-one".