641101146 has 64 divisors (see below), whose sum is σ = 1509673728. Its totient is φ = 177666048.

The previous prime is 641101141. The next prime is 641101157.

641101146 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×641101146² = 822021358805026632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (641101141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 952266 + ... + 952938.

It is an arithmetic number, because the mean of its divisors is an integer number (23588652).

Almost surely, 2^641101146 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 641101146, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (754836864).

641101146 is an abundant number, since it is smaller than the sum of its proper divisors (868572582).

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

641101146 is a wasteful number, since it uses less digits than its factorization.

641101146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1335.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 641101146 is about 25319.9752369547. The cubic root of 641101146 is about 862.2678318184.

It can be divided in two parts, 64110 and 1146, that added together give a palindrome (65256).

The spelling of 641101146 in words is "six hundred forty-one million, one hundred one thousand, one hundred forty-six".