71530122 has 8 divisors (see below), whose sum is σ = 143060256. Its totient is φ = 23843372.

The previous prime is 71530111. The next prime is 71530127. The reversal of 71530122 is 22103517.

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

71530122 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (71530127) 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, 5960838 + ... + 5960849.

It is an arithmetic number, because the mean of its divisors is an integer number (17882532).

Almost surely, 2^71530122 is an apocalyptic number.

71530122 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.

71530122 is a wasteful number, since it uses less digits than its factorization.

71530122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11921692.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 71530122 is about 8457.5482262888. The cubic root of 71530122 is about 415.1098020774.

Adding to 71530122 its reverse (22103517), we get a palindrome (93633639).

The spelling of 71530122 in words is "seventy-one million, five hundred thirty thousand, one hundred twenty-two".