71202223 has 4 divisors (see below), whose sum is σ = 71445528. Its totient is φ = 70958920.

The previous prime is 71202211. The next prime is 71202233. The reversal of 71202223 is 32220217.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32220217 = 23 ⋅1400879.

It is a cyclic number.

It is not a de Polignac number, because 71202223 - 2⁵ = 71202191 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71202223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71202233) by changing a digit.

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, 121213 + ... + 121798.

It is an arithmetic number, because the mean of its divisors is an integer number (17861382).

Almost surely, 2^71202223 is an apocalyptic number.

71202223 is a deficient number, since it is larger than the sum of its proper divisors (243305).

71202223 is a wasteful number, since it uses less digits than its factorization.

71202223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243304.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 71202223 is about 8438.1409682465. The cubic root of 71202223 is about 414.4745330843.

The spelling of 71202223 in words is "seventy-one million, two hundred two thousand, two hundred twenty-three".