641641174 has 4 divisors (see below), whose sum is σ = 962461764. Its totient is φ = 320820586.

The previous prime is 641641171. The next prime is 641641177. The reversal of 641641174 is 471146146.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (641641171) and next prime (641641177).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641641171) by changing a digit.

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 as a sum of consecutive naturals, namely, 160410292 + ... + 160410295.

It is an arithmetic number, because the mean of its divisors is an integer number (240615441).

Almost surely, 2^641641174 is an apocalyptic number.

641641174 is a deficient number, since it is larger than the sum of its proper divisors (320820590).

641641174 is a wasteful number, since it uses less digits than its factorization.

641641174 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320820589.

The product of its digits is 16128, while the sum is 34.

The square root of 641641174 is about 25330.6370626560. The cubic root of 641641174 is about 862.5098727148.

The spelling of 641641174 in words is "six hundred forty-one million, six hundred forty-one thousand, one hundred seventy-four".