71210270 has 16 divisors (see below), whose sum is σ = 130597920. Its totient is φ = 27946464.

The previous prime is 71210261. The next prime is 71210273. The reversal of 71210270 is 7201217.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71210273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66650 + ... + 67709.

It is an arithmetic number, because the mean of its divisors is an integer number (8162370).

Almost surely, 2^71210270 is an apocalyptic number.

71210270 is a deficient number, since it is larger than the sum of its proper divisors (59387650).

71210270 is a wasteful number, since it uses less digits than its factorization.

71210270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134419.

The product of its (nonzero) digits is 196, while the sum is 20.

The square root of 71210270 is about 8438.6177778117. The cubic root of 71210270 is about 414.4901465993.

Adding to 71210270 its reverse (7201217), we get a palindrome (78411487).

The spelling of 71210270 in words is "seventy-one million, two hundred ten thousand, two hundred seventy".