641124 has 36 divisors (see below), whose sum is σ = 1769040. Its totient is φ = 194160.

The previous prime is 641101. The next prime is 641129. The reversal of 641124 is 421146.

641124 is a `hidden beast` number, since 641 + 1 + 24 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×641124² = 822079966752, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 641097 and 641106.

It is not an unprimeable number, because it can be changed into a prime (641129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 414 + ... + 1205.

It is an arithmetic number, because the mean of its divisors is an integer number (49140).

2⁶⁴¹¹²⁴ is an apocalyptic number.

It is an amenable number.

641124 is an abundant number, since it is smaller than the sum of its proper divisors (1127916).

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

641124 is a wasteful number, since it uses less digits than its factorization.

641124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1640 (or 1635 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 641124 is about 800.7021918291. The cubic root of 641124 is about 86.2278077750.

The spelling of 641124 in words is "six hundred forty-one thousand, one hundred twenty-four".