641024545 has 32 divisors (see below), whose sum is σ = 903280896. Its totient is φ = 427545600.

The previous prime is 641024437. The next prime is 641024567. The reversal of 641024545 is 545420146.

It is a happy number.

It is not a de Polignac number, because 641024545 - 2¹¹ = 641022497 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 841965 + ... + 842725.

It is an arithmetic number, because the mean of its divisors is an integer number (28227528).

Almost surely, 2^641024545 is an apocalyptic number.

It is an amenable number.

641024545 is a deficient number, since it is larger than the sum of its proper divisors (262256351).

641024545 is a wasteful number, since it uses less digits than its factorization.

641024545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1401.

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 641024545 is about 25318.4625323103. The cubic root of 641024545 is about 862.2334881950.

The spelling of 641024545 in words is "six hundred forty-one million, twenty-four thousand, five hundred forty-five".