641121174 has 24 divisors (see below), whose sum is σ = 1390844520. Its totient is φ = 213438048.

The previous prime is 641121127. The next prime is 641121181. The reversal of 641121174 is 471121146.

641121174 is a `hidden beast` number, since 641 + 1 + 2 + 1 + 17 + 4 = 666.

It is a super-2 number, since 2×641121174² = 822072719502276552, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7452 + ... + 36575.

It is an arithmetic number, because the mean of its divisors is an integer number (57951855).

Almost surely, 2^641121174 is an apocalyptic number.

641121174 is an abundant number, since it is smaller than the sum of its proper divisors (749723346).

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

641121174 is a wasteful number, since it uses less digits than its factorization.

641121174 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44844 (or 44841 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 641121174 is about 25320.3707318831. The cubic root of 641121174 is about 862.2768108073.

The spelling of 641121174 in words is "six hundred forty-one million, one hundred twenty-one thousand, one hundred seventy-four".