641514258 has 96 divisors (see below), whose sum is σ = 1741409280. Its totient is φ = 165811680.

The previous prime is 641514241. The next prime is 641514259. The reversal of 641514258 is 852415146.

It is a happy number.

641514258 is a `hidden beast` number, since 641 + 5 + 1 + 4 + 2 + 5 + 8 = 666.

641514258 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (641514259) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 313603 + ... + 315641.

It is an arithmetic number, because the mean of its divisors is an integer number (18139680).

Almost surely, 2^641514258 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 641514258, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (870704640).

641514258 is an abundant number, since it is smaller than the sum of its proper divisors (1099895022).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

641514258 is a wasteful number, since it uses less digits than its factorization.

641514258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2292 (or 2289 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 641514258 is about 25328.1317510787. The cubic root of 641514258 is about 862.4530010937.

The spelling of 641514258 in words is "six hundred forty-one million, five hundred fourteen thousand, two hundred fifty-eight".