864526147 has 4 divisors (see below), whose sum is σ = 864697696. Its totient is φ = 864354600.

The previous prime is 864526121. The next prime is 864526183. The reversal of 864526147 is 741625468.

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 864526147 - 2¹⁵ = 864493379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (861526147) 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, 77979 + ... + 88372.

It is an arithmetic number, because the mean of its divisors is an integer number (216174424).

Almost surely, 2^864526147 is an apocalyptic number.

864526147 is a deficient number, since it is larger than the sum of its proper divisors (171549).

864526147 is a wasteful number, since it uses less digits than its factorization.

864526147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171548.

The product of its digits is 322560, while the sum is 43.

The square root of 864526147 is about 29402.8254934794. The cubic root of 864526147 is about 952.6339267414.

The spelling of 864526147 in words is "eight hundred sixty-four million, five hundred twenty-six thousand, one hundred forty-seven".