147856647 has 8 divisors (see below), whose sum is σ = 198951280. Its totient is φ = 97666560.

The previous prime is 147856607. The next prime is 147856669. The reversal of 147856647 is 746658741.

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

It is not a de Polignac number, because 147856647 - 2¹⁹ = 147332359 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 147856596 and 147856605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147856607) 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 7 ways as a sum of consecutive naturals, for example, 225754 + ... + 226407.

It is an arithmetic number, because the mean of its divisors is an integer number (24868910).

Almost surely, 2^147856647 is an apocalyptic number.

147856647 is a deficient number, since it is larger than the sum of its proper divisors (51094633).

147856647 is a wasteful number, since it uses less digits than its factorization.

147856647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452273.

The product of its digits is 1128960, while the sum is 48.

The square root of 147856647 is about 12159.6318612037. The cubic root of 147856647 is about 528.7864091980.

The spelling of 147856647 in words is "one hundred forty-seven million, eight hundred fifty-six thousand, six hundred forty-seven".