71161122 has 16 divisors (see below), whose sum is σ = 142416000. Its totient is φ = 23704752.

The previous prime is 71161109. The next prime is 71161127. The reversal of 71161122 is 22116117.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (71161127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9504 + ... + 15252.

It is an arithmetic number, because the mean of its divisors is an integer number (8901000).

Almost surely, 2^71161122 is an apocalyptic number.

71161122 is an abundant number, since it is smaller than the sum of its proper divisors (71254878).

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

71161122 is a wasteful number, since it uses less digits than its factorization.

71161122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7817.

The product of its digits is 168, while the sum is 21.

The square root of 71161122 is about 8435.7051868827. The cubic root of 71161122 is about 414.3947668637.

Adding to 71161122 its reverse (22116117), we get a palindrome (93277239).

The spelling of 71161122 in words is "seventy-one million, one hundred sixty-one thousand, one hundred twenty-two".