641222146 has 8 divisors (see below), whose sum is σ = 1012456080. Its totient is φ = 303736788.

The previous prime is 641222119. The next prime is 641222159.

641222146 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×641222146² = 822331681041690632, which contains 22 as substring.

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, 8437096 + ... + 8437171.

It is an arithmetic number, because the mean of its divisors is an integer number (126557010).

Almost surely, 2^641222146 is an apocalyptic number.

641222146 is a deficient number, since it is larger than the sum of its proper divisors (371233934).

641222146 is a wasteful number, since it uses less digits than its factorization.

641222146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16874288.

The product of its digits is 4608, while the sum is 28.

The square root of 641222146 is about 25322.3645420407. The cubic root of 641222146 is about 862.3220759082.

The spelling of 641222146 in words is "six hundred forty-one million, two hundred twenty-two thousand, one hundred forty-six".