64531195 has 8 divisors (see below), whose sum is σ = 77762880. Its totient is φ = 51408000.

The previous prime is 64531151. The next prime is 64531267. The reversal of 64531195 is 59113546.

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

It is not a de Polignac number, because 64531195 - 2⁷ = 64531067 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64531195.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 25806 + ... + 28195.

It is an arithmetic number, because the mean of its divisors is an integer number (9720360).

Almost surely, 2^64531195 is an apocalyptic number.

64531195 is a deficient number, since it is larger than the sum of its proper divisors (13231685).

64531195 is a wasteful number, since it uses less digits than its factorization.

64531195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54245.

The product of its digits is 16200, while the sum is 34.

The square root of 64531195 is about 8033.1310832078. The cubic root of 64531195 is about 401.1036085700.

The spelling of 64531195 in words is "sixty-four million, five hundred thirty-one thousand, one hundred ninety-five".