641585146 has 16 divisors (see below), whose sum is σ = 973065600. Its totient is φ = 317238768.

The previous prime is 641585137. The next prime is 641585167.

641585146 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 641585099 and 641585108.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187620 + ... + 191008.

It is an arithmetic number, because the mean of its divisors is an integer number (60816600).

Almost surely, 2^641585146 is an apocalyptic number.

641585146 is a deficient number, since it is larger than the sum of its proper divisors (331480454).

641585146 is a wasteful number, since it uses less digits than its factorization.

641585146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4413.

The product of its digits is 115200, while the sum is 40.

The square root of 641585146 is about 25329.5311050165. The cubic root of 641585146 is about 862.4847672448.

The spelling of 641585146 in words is "six hundred forty-one million, five hundred eighty-five thousand, one hundred forty-six".