71952163 has 4 divisors (see below), whose sum is σ = 72137520. Its totient is φ = 71766808.

The previous prime is 71952131. The next prime is 71952169. The reversal of 71952163 is 36125917.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36125917 = 2789 ⋅12953.

It is a cyclic number.

It is not a de Polignac number, because 71952163 - 2⁵ = 71952131 is a prime.

It is a super-2 number, since 2×71952163² = 10354227520757138, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71952169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92095 + ... + 92872.

It is an arithmetic number, because the mean of its divisors is an integer number (18034380).

Almost surely, 2^71952163 is an apocalyptic number.

71952163 is a deficient number, since it is larger than the sum of its proper divisors (185357).

71952163 is a wasteful number, since it uses less digits than its factorization.

71952163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185356.

The product of its digits is 11340, while the sum is 34.

The square root of 71952163 is about 8482.4620836170. The cubic root of 71952163 is about 415.9246099668.

The spelling of 71952163 in words is "seventy-one million, nine hundred fifty-two thousand, one hundred sixty-three".