72163063 has 4 divisors (see below), whose sum is σ = 82472080. Its totient is φ = 61854048.

The previous prime is 72163057. The next prime is 72163067. The reversal of 72163063 is 36036127.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36036127 = 229 ⋅157363.

It is a cyclic number.

It is not a de Polignac number, because 72163063 - 2⁵ = 72163031 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 (72163067) 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, 5154498 + ... + 5154511.

It is an arithmetic number, because the mean of its divisors is an integer number (20618020).

Almost surely, 2^72163063 is an apocalyptic number.

72163063 is a deficient number, since it is larger than the sum of its proper divisors (10309017).

72163063 is a wasteful number, since it uses less digits than its factorization.

72163063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10309016.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 72163063 is about 8494.8845195211. The cubic root of 72163063 is about 416.3305877329.

The spelling of 72163063 in words is "seventy-two million, one hundred sixty-three thousand, sixty-three".