71301912 has 96 divisors (see below), whose sum is σ = 200840640. Its totient is φ = 21067200.

The previous prime is 71301883. The next prime is 71301929. The reversal of 71301912 is 21910317.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 124587 + ... + 125157.

It is an arithmetic number, because the mean of its divisors is an integer number (2092090).

Almost surely, 2^71301912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71301912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100420320).

71301912 is an abundant number, since it is smaller than the sum of its proper divisors (129538728).

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

71301912 is a wasteful number, since it uses less digits than its factorization.

71301912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645 (or 630 counting only the distinct ones).

The product of its (nonzero) digits is 378, while the sum is 24.

The square root of 71301912 is about 8444.0459496618. The cubic root of 71301912 is about 414.6678757537.

The spelling of 71301912 in words is "seventy-one million, three hundred one thousand, nine hundred twelve".