71153222 has 8 divisors (see below), whose sum is σ = 121976976. Its totient is φ = 30494232.

The previous prime is 71153221. The next prime is 71153227. The reversal of 71153222 is 22235117.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71153221) 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, 2541173 + ... + 2541200.

It is an arithmetic number, because the mean of its divisors is an integer number (15247122).

Almost surely, 2^71153222 is an apocalyptic number.

71153222 is a deficient number, since it is larger than the sum of its proper divisors (50823754).

71153222 is a wasteful number, since it uses less digits than its factorization.

71153222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5082382.

The product of its digits is 840, while the sum is 23.

The square root of 71153222 is about 8435.2369261331. The cubic root of 71153222 is about 414.3794315246.

Adding to 71153222 its reverse (22235117), we get a palindrome (93388339).

The spelling of 71153222 in words is "seventy-one million, one hundred fifty-three thousand, two hundred twenty-two".