71159238 has 48 divisors (see below), whose sum is σ = 159690960. Its totient is φ = 22885632.

The previous prime is 71159213. The next prime is 71159239. The reversal of 71159238 is 83295117.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71159239) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68370 + ... + 69402.

It is an arithmetic number, because the mean of its divisors is an integer number (3326895).

Almost surely, 2^71159238 is an apocalyptic number.

71159238 is an abundant number, since it is smaller than the sum of its proper divisors (88531722).

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

71159238 is a wasteful number, since it uses less digits than its factorization.

71159238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1173 (or 1170 counting only the distinct ones).

The product of its digits is 15120, while the sum is 36.

The square root of 71159238 is about 8435.5935179453. The cubic root of 71159238 is about 414.3911097796.

The spelling of 71159238 in words is "seventy-one million, one hundred fifty-nine thousand, two hundred thirty-eight".