71018742 has 8 divisors (see below), whose sum is σ = 142037496. Its totient is φ = 23672912.

The previous prime is 71018719. The next prime is 71018743. The reversal of 71018742 is 24781017.

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

71018742 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71018743) 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, 5918223 + ... + 5918234.

It is an arithmetic number, because the mean of its divisors is an integer number (17754687).

Almost surely, 2^71018742 is an apocalyptic number.

71018742 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.

71018742 is a wasteful number, since it uses less digits than its factorization.

71018742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11836462.

The product of its (nonzero) digits is 3136, while the sum is 30.

The square root of 71018742 is about 8427.2618328850. The cubic root of 71018742 is about 414.1182070449.

Adding to 71018742 its reverse (24781017), we get a palindrome (95799759).

The spelling of 71018742 in words is "seventy-one million, eighteen thousand, seven hundred forty-two".