71151422 has 4 divisors (see below), whose sum is σ = 106727136. Its totient is φ = 35575710.

The previous prime is 71151403. The next prime is 71151427. The reversal of 71151422 is 22415117.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71151427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17787854 + ... + 17787857.

It is an arithmetic number, because the mean of its divisors is an integer number (26681784).

Almost surely, 2^71151422 is an apocalyptic number.

71151422 is a deficient number, since it is larger than the sum of its proper divisors (35575714).

71151422 is a wasteful number, since it uses less digits than its factorization.

71151422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35575713.

The product of its digits is 560, while the sum is 23.

The square root of 71151422 is about 8435.1302301743. The cubic root of 71151422 is about 414.3759372379.

Adding to 71151422 its reverse (22415117), we get a palindrome (93566539).

The spelling of 71151422 in words is "seventy-one million, one hundred fifty-one thousand, four hundred twenty-two".