641405224252141 has 2 divisors, whose sum is σ = 641405224252142. Its totient is φ = 641405224252140.

The previous prime is 641405224252099. The next prime is 641405224252183. The reversal of 641405224252141 is 141252422504146.

It is a balanced prime because it is at equal distance from previous prime (641405224252099) and next prime (641405224252183).

It can be written as a sum of positive squares in only one way, i.e., 340020138933225 + 301385085318916 = 18439635^2 + 17360446^2 .

It is a cyclic number.

It is not a de Polignac number, because 641405224252141 - 2²⁵ = 641405190697709 is a prime.

It is a super-2 number, since 2×641405224252141² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (641400224252141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320702612126070 + 320702612126071.

It is an arithmetic number, because the mean of its divisors is an integer number (320702612126071).

Almost surely, 2^{641405224252141} is an apocalyptic number.

It is an amenable number.

641405224252141 is a deficient number, since it is larger than the sum of its proper divisors (1).

641405224252141 is an equidigital number, since it uses as much as digits as its factorization.

641405224252141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 614400, while the sum is 43.

Adding to 641405224252141 its reverse (141252422504146), we get a palindrome (782657646756287).

The spelling of 641405224252141 in words is "six hundred forty-one trillion, four hundred five billion, two hundred twenty-four million, two hundred fifty-two thousand, one hundred forty-one".