71582142 has 8 divisors (see below), whose sum is σ = 143164296. Its totient is φ = 23860712.

The previous prime is 71582123. The next prime is 71582149. The reversal of 71582142 is 24128517.

It is a sphenic number, since it is the product of 3 distinct primes.

71582142 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71582149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5965173 + ... + 5965184.

It is an arithmetic number, because the mean of its divisors is an integer number (17895537).

Almost surely, 2^71582142 is an apocalyptic number.

71582142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

71582142 is a wasteful number, since it uses less digits than its factorization.

71582142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11930362.

The product of its digits is 4480, while the sum is 30.

The square root of 71582142 is about 8460.6230267044. The cubic root of 71582142 is about 415.2104066837.

The spelling of 71582142 in words is "seventy-one million, five hundred eighty-two thousand, one hundred forty-two".