71995226 has 16 divisors (see below), whose sum is σ = 112301640. Its totient is φ = 34574400.

The previous prime is 71995223. The next prime is 71995241. The reversal of 71995226 is 62259917.

It is a Cunningham number, because it is equal to 8485²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 71995225 + 1 = 8485^2 + 1^2 .

It is not an unprimeable number, because it can be changed into a prime (71995223) by changing a digit.

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, 8276 + ... + 14576.

Almost surely, 2^71995226 is an apocalyptic number.

71995226 is a deficient number, since it is larger than the sum of its proper divisors (40306414).

71995226 is a wasteful number, since it uses less digits than its factorization.

71995226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6529.

The product of its digits is 68040, while the sum is 41.

The square root of 71995226 is about 8485.0000589275. Note that the first 4 decimals coincide. The cubic root of 71995226 is about 416.0075696663.

The spelling of 71995226 in words is "seventy-one million, nine hundred ninety-five thousand, two hundred twenty-six".