641112 has 16 divisors (see below), whose sum is σ = 1602840. Its totient is φ = 213696.

The previous prime is 641101. The next prime is 641129. The reversal of 641112 is 211146.

It is a super-2 number, since 2×641112² = 822049193088, which contains 22 as substring.

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

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 641091 and 641100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13333 + ... + 13380.

2⁶⁴¹¹¹² is an apocalyptic number.

It is an amenable number.

641112 is an abundant number, since it is smaller than the sum of its proper divisors (961728).

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

641112 is a wasteful number, since it uses less digits than its factorization.

641112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26722 (or 26718 counting only the distinct ones).

The product of its digits is 48, while the sum is 15.

The square root of 641112 is about 800.6946983714. The cubic root of 641112 is about 86.2272697926.

Adding to 641112 its reverse (211146), we get a palindrome (852258).

It can be divided in two parts, 64 and 1112, that added together give a triangular number (1176 = T₄₈).

The spelling of 641112 in words is "six hundred forty-one thousand, one hundred twelve".