168147447 has 8 divisors (see below), whose sum is σ = 241442544. Its totient is φ = 103475328.

The previous prime is 168147443. The next prime is 168147451. The reversal of 168147447 is 744741861.

It is an interprime number because it is at equal distance from previous prime (168147443) and next prime (168147451).

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

It is not a de Polignac number, because 168147447 - 2² = 168147443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 168147399 and 168147408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168147443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2155698 + ... + 2155775.

It is an arithmetic number, because the mean of its divisors is an integer number (30180318).

Almost surely, 2^168147447 is an apocalyptic number.

168147447 is a deficient number, since it is larger than the sum of its proper divisors (73295097).

168147447 is a wasteful number, since it uses less digits than its factorization.

168147447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4311489.

The product of its digits is 150528, while the sum is 42.

The square root of 168147447 is about 12967.1680408638. The cubic root of 168147447 is about 551.9462146975.

The spelling of 168147447 in words is "one hundred sixty-eight million, one hundred forty-seven thousand, four hundred forty-seven".