71229168 has 30 divisors (see below), whose sum is σ = 199343144. Its totient is φ = 23743008.

The previous prime is 71229161. The next prime is 71229209. The reversal of 71229168 is 86192217.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71229161) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 247180 + ... + 247467.

Almost surely, 2^71229168 is an apocalyptic number.

It is an amenable number.

71229168 is an abundant number, since it is smaller than the sum of its proper divisors (128113976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71229168 is a wasteful number, since it uses less digits than its factorization.

71229168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494661 (or 494652 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 71229168 is about 8439.7374366742. The cubic root of 71229168 is about 414.5268095786.

It can be divided in two parts, 7122 and 9168, that added together give a triangular number (16290 = T₁₈₀).

The spelling of 71229168 in words is "seventy-one million, two hundred twenty-nine thousand, one hundred sixty-eight".