71872158 has 32 divisors (see below), whose sum is σ = 153117216. Its totient is φ = 22412288.

The previous prime is 71872153. The next prime is 71872169. The reversal of 71872158 is 85127817.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71872153) 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 15 ways as a sum of consecutive naturals, for example, 15610 + ... + 19682.

It is an arithmetic number, because the mean of its divisors is an integer number (4784913).

Almost surely, 2^71872158 is an apocalyptic number.

71872158 is an abundant number, since it is smaller than the sum of its proper divisors (81245058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71872158 is a wasteful number, since it uses less digits than its factorization.

71872158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4268.

The product of its digits is 31360, while the sum is 39.

The square root of 71872158 is about 8477.7448652339. The cubic root of 71872158 is about 415.7703945914.

The spelling of 71872158 in words is "seventy-one million, eight hundred seventy-two thousand, one hundred fifty-eight".