641043153 has 10 divisors (see below), whose sum is σ = 957607794. Its totient is φ = 427362048.

The previous prime is 641043133. The next prime is 641043163. The reversal of 641043153 is 351340146.

641043153 is a `hidden beast` number, since 641 + 0 + 4 + 3 + 15 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 501401664 + 139641489 = 22392^2 + 11817^2 .

It is not a de Polignac number, because 641043153 - 2⁵ = 641043121 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (641043133) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3956976 + ... + 3957137.

Almost surely, 2^641043153 is an apocalyptic number.

It is an amenable number.

641043153 is a deficient number, since it is larger than the sum of its proper divisors (316564641).

641043153 is an equidigital number, since it uses as much as digits as its factorization.

641043153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7914125 (or 7914116 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 641043153 is about 25318.8300085134. The cubic root of 641043153 is about 862.2418312377.

Adding to 641043153 its reverse (351340146), we get a palindrome (992383299).

The spelling of 641043153 in words is "six hundred forty-one million, forty-three thousand, one hundred fifty-three".