641514265 has 8 divisors (see below), whose sum is σ = 879791040. Its totient is φ = 439895472.

The previous prime is 641514259. The next prime is 641514277. The reversal of 641514265 is 562415146.

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

It is a cyclic number.

It is not a de Polignac number, because 641514265 - 2¹¹ = 641512217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 641514265.

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, 9164455 + ... + 9164524.

It is an arithmetic number, because the mean of its divisors is an integer number (109973880).

Almost surely, 2^641514265 is an apocalyptic number.

It is an amenable number.

641514265 is a deficient number, since it is larger than the sum of its proper divisors (238276775).

641514265 is a wasteful number, since it uses less digits than its factorization.

641514265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18328991.

The product of its digits is 28800, while the sum is 34.

The square root of 641514265 is about 25328.1318892649. The cubic root of 641514265 is about 862.4530042306.

The spelling of 641514265 in words is "six hundred forty-one million, five hundred fourteen thousand, two hundred sixty-five".