71130022 has 4 divisors (see below), whose sum is σ = 106695036. Its totient is φ = 35565010.

The previous prime is 71130013. The next prime is 71130029. The reversal of 71130022 is 22003117.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22003117 = 17 ⋅1294301.

It is a junction number, because it is equal to n+sod(n) for n = 71129978 and 71130005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71130029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17782504 + ... + 17782507.

It is an arithmetic number, because the mean of its divisors is an integer number (26673759).

Almost surely, 2^71130022 is an apocalyptic number.

71130022 is a deficient number, since it is larger than the sum of its proper divisors (35565014).

71130022 is a wasteful number, since it uses less digits than its factorization.

71130022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35565013.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 71130022 is about 8433.8616303565. The cubic root of 71130022 is about 414.3343895359.

Adding to 71130022 its reverse (22003117), we get a palindrome (93133139).

The spelling of 71130022 in words is "seventy-one million, one hundred thirty thousand, twenty-two".