71226197 has 8 divisors (see below), whose sum is σ = 83133696. Its totient is φ = 59751792.

The previous prime is 71226191. The next prime is 71226257. The reversal of 71226197 is 79162217.

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

It is a cyclic number.

It is not a de Polignac number, because 71226197 - 2¹⁰ = 71225173 is a prime.

It is a super-2 number, since 2×71226197² = 10146342278165618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71226191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107918 + ... + 108575.

It is an arithmetic number, because the mean of its divisors is an integer number (10391712).

Almost surely, 2^71226197 is an apocalyptic number.

It is an amenable number.

71226197 is a deficient number, since it is larger than the sum of its proper divisors (11907499).

71226197 is a wasteful number, since it uses less digits than its factorization.

71226197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216547.

The product of its digits is 10584, while the sum is 35.

The square root of 71226197 is about 8439.5614222541. The cubic root of 71226197 is about 414.5210461332.

The spelling of 71226197 in words is "seventy-one million, two hundred twenty-six thousand, one hundred ninety-seven".