636329812141 has 2 divisors, whose sum is σ = 636329812142. Its totient is φ = 636329812140.

The previous prime is 636329812121. The next prime is 636329812189. The reversal of 636329812141 is 141218923636.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 473722475625 + 162607336516 = 688275^2 + 403246^2 .

It is a cyclic number.

It is not a de Polignac number, because 636329812141 - 2²³ = 636321423533 is a prime.

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

It is a junction number, because it is equal to n+sod(n) for n = 636329812091 and 636329812100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (636329812121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 318164906070 + 318164906071.

It is an arithmetic number, because the mean of its divisors is an integer number (318164906071).

Almost surely, 2^636329812141 is an apocalyptic number.

It is an amenable number.

636329812141 is a deficient number, since it is larger than the sum of its proper divisors (1).

636329812141 is an equidigital number, since it uses as much as digits as its factorization.

636329812141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 373248, while the sum is 46.

The spelling of 636329812141 in words is "six hundred thirty-six billion, three hundred twenty-nine million, eight hundred twelve thousand, one hundred forty-one".