71122442 has 16 divisors (see below), whose sum is σ = 111054240. Its totient is φ = 34119792.

The previous prime is 71122439. The next prime is 71122459. The reversal of 71122442 is 24422117.

It is an unprimeable number.

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, 5693 + ... + 13215.

It is an arithmetic number, because the mean of its divisors is an integer number (6940890).

Almost surely, 2^71122442 is an apocalyptic number.

71122442 is a deficient number, since it is larger than the sum of its proper divisors (39931798).

71122442 is a wasteful number, since it uses less digits than its factorization.

71122442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7717.

The product of its digits is 896, while the sum is 23.

The square root of 71122442 is about 8433.4122394201. The cubic root of 71122442 is about 414.3196711083.

Adding to 71122442 its reverse (24422117), we get a palindrome (95544559).

The spelling of 71122442 in words is "seventy-one million, one hundred twenty-two thousand, four hundred forty-two".