64825147 has 4 divisors (see below), whose sum is σ = 66577216. Its totient is φ = 63073080.

The previous prime is 64825081. The next prime is 64825153. The reversal of 64825147 is 74152846.

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 64825147 - 2¹⁵ = 64792379 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 1752031 = 64825147 / (6 + 4 + 8 + 2 + 5 + 1 + 4 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64825157) 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, 875979 + ... + 876052.

It is an arithmetic number, because the mean of its divisors is an integer number (16644304).

Almost surely, 2^64825147 is an apocalyptic number.

64825147 is a deficient number, since it is larger than the sum of its proper divisors (1752069).

64825147 is a wasteful number, since it uses less digits than its factorization.

64825147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1752068.

The product of its digits is 53760, while the sum is 37.

The square root of 64825147 is about 8051.4065230865. The cubic root of 64825147 is about 401.7117208309.

The spelling of 64825147 in words is "sixty-four million, eight hundred twenty-five thousand, one hundred forty-seven".