641343146 has 8 divisors (see below), whose sum is σ = 964237764. Its totient is φ = 319930560.

The previous prime is 641343137. The next prime is 641343187.

641343146 is nontrivially palindromic in base 10.

641343146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 485717521 + 155625625 = 22039^2 + 12475^2 .

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

It is a super-2 number, since 2×641343146² = 822642061842354632, 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, 369425 + ... + 371156.

Almost surely, 2^641343146 is an apocalyptic number.

641343146 is a deficient number, since it is larger than the sum of its proper divisors (322894618).

641343146 is a wasteful number, since it uses less digits than its factorization.

641343146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741016.

The product of its digits is 20736, while the sum is 32.

The square root of 641343146 is about 25324.7536217038. The cubic root of 641343146 is about 862.3763131744.

The spelling of 641343146 in words is "six hundred forty-one million, three hundred forty-three thousand, one hundred forty-six".