71121342 has 8 divisors (see below), whose sum is σ = 142242696. Its totient is φ = 23707112.

The previous prime is 71121329. The next prime is 71121343. The reversal of 71121342 is 24312117.

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

71121342 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71121343) 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, 5926773 + ... + 5926784.

It is an arithmetic number, because the mean of its divisors is an integer number (17780337).

Almost surely, 2^71121342 is an apocalyptic number.

71121342 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.

71121342 is a wasteful number, since it uses less digits than its factorization.

71121342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11853562.

The product of its digits is 336, while the sum is 21.

The square root of 71121342 is about 8433.3470223868. The cubic root of 71121342 is about 414.3175351018.

Adding to 71121342 its reverse (24312117), we get a palindrome (95433459).

The spelling of 71121342 in words is "seventy-one million, one hundred twenty-one thousand, three hundred forty-two".