71221162 has 8 divisors (see below), whose sum is σ = 106868196. Its totient is φ = 35598432.

The previous prime is 71221127. The next prime is 71221207. The reversal of 71221162 is 26112217.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 69705801 + 1515361 = 8349^2 + 1231^2 .

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

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 6268 + ... + 13480.

Almost surely, 2^71221162 is an apocalyptic number.

71221162 is a deficient number, since it is larger than the sum of its proper divisors (35647034).

71221162 is a wasteful number, since it uses less digits than its factorization.

71221162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12152.

The product of its digits is 336, while the sum is 22.

The square root of 71221162 is about 8439.2631194909. The cubic root of 71221162 is about 414.5112783663.

Adding to 71221162 its reverse (26112217), we get a palindrome (97333379).

The spelling of 71221162 in words is "seventy-one million, two hundred twenty-one thousand, one hundred sixty-two".