64752149 has 16 divisors (see below), whose sum is σ = 83337216. Its totient is φ = 48826800.

The previous prime is 64752139. The next prime is 64752151. The reversal of 64752149 is 94125746.

It is not a de Polignac number, because 64752149 - 2⁸ = 64751893 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64752139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11177 + ... + 15950.

It is an arithmetic number, because the mean of its divisors is an integer number (5208576).

Almost surely, 2^64752149 is an apocalyptic number.

It is an amenable number.

64752149 is a deficient number, since it is larger than the sum of its proper divisors (18585067).

64752149 is a wasteful number, since it uses less digits than its factorization.

64752149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27176.

The product of its digits is 60480, while the sum is 38.

The square root of 64752149 is about 8046.8720009703. The cubic root of 64752149 is about 401.5608783080.

The spelling of 64752149 in words is "sixty-four million, seven hundred fifty-two thousand, one hundred forty-nine".