641341153 has 2 divisors, whose sum is σ = 641341154. Its totient is φ = 641341152.

The previous prime is 641341117. The next prime is 641341159. The reversal of 641341153 is 351143146.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 614643264 + 26697889 = 24792^2 + 5167^2 .

It is a cyclic number.

It is not a de Polignac number, because 641341153 - 2¹³ = 641332961 is a prime.

It is a super-2 number, since 2×641341153² = 822636949062738818, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (641341159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320670576 + 320670577.

It is an arithmetic number, because the mean of its divisors is an integer number (320670577).

Almost surely, 2^641341153 is an apocalyptic number.

It is an amenable number.

641341153 is a deficient number, since it is larger than the sum of its proper divisors (1).

641341153 is an equidigital number, since it uses as much as digits as its factorization.

641341153 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 28.

The square root of 641341153 is about 25324.7142728205. The cubic root of 641341153 is about 862.3754198836.

Adding to 641341153 its reverse (351143146), we get a palindrome (992484299).

The spelling of 641341153 in words is "six hundred forty-one million, three hundred forty-one thousand, one hundred fifty-three".