641615483 has 4 divisors (see below), whose sum is σ = 658956480. Its totient is φ = 624274488.

The previous prime is 641615467. The next prime is 641615537. The reversal of 641615483 is 384516146.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 641615483 - 2⁴ = 641615467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (641615983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8670443 + ... + 8670516.

It is an arithmetic number, because the mean of its divisors is an integer number (164739120).

Almost surely, 2^641615483 is an apocalyptic number.

641615483 is a deficient number, since it is larger than the sum of its proper divisors (17340997).

641615483 is a wasteful number, since it uses less digits than its factorization.

641615483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17340996.

The product of its digits is 69120, while the sum is 38.

The square root of 641615483 is about 25330.1299443963. The cubic root of 641615483 is about 862.4983610695.

The spelling of 641615483 in words is "six hundred forty-one million, six hundred fifteen thousand, four hundred eighty-three".