71172230 has 16 divisors (see below), whose sum is σ = 128208960. Its totient is φ = 28446912.

The previous prime is 71172229. The next prime is 71172253. The reversal of 71172230 is 3227117.

It is a junction number, because it is equal to n+sod(n) for n = 71172196 and 71172205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19187 + ... + 22593.

It is an arithmetic number, because the mean of its divisors is an integer number (8013060).

Almost surely, 2^71172230 is an apocalyptic number.

71172230 is a deficient number, since it is larger than the sum of its proper divisors (57036730).

71172230 is a wasteful number, since it uses less digits than its factorization.

71172230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5503.

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 71172230 is about 8436.3635530956. The cubic root of 71172230 is about 414.4163275954.

Adding to 71172230 its reverse (3227117), we get a palindrome (74399347).

The spelling of 71172230 in words is "seventy-one million, one hundred seventy-two thousand, two hundred thirty".