71245308 has 24 divisors (see below), whose sum is σ = 167795712. Its totient is φ = 23526064.

The previous prime is 71245253. The next prime is 71245319. The reversal of 71245308 is 80354217.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 26460 + ... + 29027.

It is an arithmetic number, because the mean of its divisors is an integer number (6991488).

Almost surely, 2^71245308 is an apocalyptic number.

It is an amenable number.

71245308 is an abundant number, since it is smaller than the sum of its proper divisors (96550404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71245308 is a wasteful number, since it uses less digits than its factorization.

71245308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55601 (or 55599 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 71245308 is about 8440.6935733979. The cubic root of 71245308 is about 414.5581167787.

The spelling of 71245308 in words is "seventy-one million, two hundred forty-five thousand, three hundred eight".