71225830 has 32 divisors (see below), whose sum is σ = 138910464. Its totient is φ = 26138496.

The previous prime is 71225809. The next prime is 71225831. The reversal of 71225830 is 3852217.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71225831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20907 + ... + 24073.

It is an arithmetic number, because the mean of its divisors is an integer number (4340952).

Almost surely, 2^71225830 is an apocalyptic number.

71225830 is a deficient number, since it is larger than the sum of its proper divisors (67684634).

71225830 is a wasteful number, since it uses less digits than its factorization.

71225830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3360.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 71225830 is about 8439.5396793901. The cubic root of 71225830 is about 414.5203341784.

The spelling of 71225830 in words is "seventy-one million, two hundred twenty-five thousand, eight hundred thirty".