641145339 has 6 divisors (see below), whose sum is σ = 926098836. Its totient is φ = 427430220.

The previous prime is 641145299. The next prime is 641145343. The reversal of 641145339 is 933541146.

641145339 is a `hidden beast` number, since 6 + 4 + 114 + 533 + 9 = 666.

It is not a de Polignac number, because 641145339 - 2⁹ = 641144827 is a prime.

It is a super-2 number, since 2×641145339² = 822134691442849842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (641145359) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35619177 + ... + 35619194.

It is an arithmetic number, because the mean of its divisors is an integer number (154349806).

Almost surely, 2^641145339 is an apocalyptic number.

641145339 is a deficient number, since it is larger than the sum of its proper divisors (284953497).

641145339 is a wasteful number, since it uses less digits than its factorization.

641145339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71238377 (or 71238374 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 641145339 is about 25320.8479123429. The cubic root of 641145339 is about 862.2876442546.

The spelling of 641145339 in words is "six hundred forty-one million, one hundred forty-five thousand, three hundred thirty-nine".