641402362141 has 4 divisors (see below), whose sum is σ = 641685294432. Its totient is φ = 641119429852.

The previous prime is 641402362123. The next prime is 641402362163. The reversal of 641402362141 is 141263204146.

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, and also an emirpimes, since its reverse is a distinct semiprime: 141263204146 = 2 ⋅70631602073.

It is a cyclic number.

It is not a de Polignac number, because 641402362141 - 2¹⁷ = 641402231069 is a prime.

It is a super-2 number, since 2×641402362141² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 641402362097 and 641402362106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641402362841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141462745 + ... + 141467278.

It is an arithmetic number, because the mean of its divisors is an integer number (160421323608).

Almost surely, 2^641402362141 is an apocalyptic number.

It is an amenable number.

641402362141 is a deficient number, since it is larger than the sum of its proper divisors (282932291).

641402362141 is a wasteful number, since it uses less digits than its factorization.

641402362141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282932290.

The product of its (nonzero) digits is 27648, while the sum is 34.

Adding to 641402362141 its reverse (141263204146), we get a palindrome (782665566287).

The spelling of 641402362141 in words is "six hundred forty-one billion, four hundred two million, three hundred sixty-two thousand, one hundred forty-one".