71222174 has 4 divisors (see below), whose sum is σ = 106833264. Its totient is φ = 35611086.

The previous prime is 71222171. The next prime is 71222183. The reversal of 71222174 is 47122217.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47122217 = 3407 ⋅13831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71222171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17805542 + ... + 17805545.

It is an arithmetic number, because the mean of its divisors is an integer number (26708316).

Almost surely, 2^71222174 is an apocalyptic number.

71222174 is a deficient number, since it is larger than the sum of its proper divisors (35611090).

71222174 is a wasteful number, since it uses less digits than its factorization.

71222174 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35611089.

The product of its digits is 1568, while the sum is 26.

The square root of 71222174 is about 8439.3230771194. The cubic root of 71222174 is about 414.5132416565.

The spelling of 71222174 in words is "seventy-one million, two hundred twenty-two thousand, one hundred seventy-four".