64635141 has 4 divisors (see below), whose sum is σ = 86180192. Its totient is φ = 43090092.

The previous prime is 64635133. The next prime is 64635163. The reversal of 64635141 is 14153646.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 64635141 - 2³ = 64635133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64635099 and 64635108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64635191) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 10772521 + ... + 10772526.

It is an arithmetic number, because the mean of its divisors is an integer number (21545048).

Almost surely, 2^64635141 is an apocalyptic number.

It is an amenable number.

64635141 is a deficient number, since it is larger than the sum of its proper divisors (21545051).

64635141 is a wasteful number, since it uses less digits than its factorization.

64635141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21545050.

The product of its digits is 8640, while the sum is 30.

The square root of 64635141 is about 8039.5983108611. The cubic root of 64635141 is about 401.3188571769.

Adding to 64635141 its reverse (14153646), we get a palindrome (78788787).

The spelling of 64635141 in words is "sixty-four million, six hundred thirty-five thousand, one hundred forty-one".