163115047 has 4 divisors (see below), whose sum is σ = 163263240. Its totient is φ = 162966856.

The previous prime is 163115033. The next prime is 163115063. The reversal of 163115047 is 740511361.

163115047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 163115047 - 2¹⁵ = 163082279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163116047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72433 + ... + 74650.

It is an arithmetic number, because the mean of its divisors is an integer number (40815810).

Almost surely, 2^163115047 is an apocalyptic number.

163115047 is a deficient number, since it is larger than the sum of its proper divisors (148193).

163115047 is a wasteful number, since it uses less digits than its factorization.

163115047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148192.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 163115047 is about 12771.6501283115. The cubic root of 163115047 is about 546.3840444151.

The spelling of 163115047 in words is "one hundred sixty-three million, one hundred fifteen thousand, forty-seven".