71313750 has 80 divisors (see below), whose sum is σ = 198124080. Its totient is φ = 19008000.

The previous prime is 71313703. The next prime is 71313751. The reversal of 71313750 is 5731317.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71313751) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 32694 + ... + 34806.

It is an arithmetic number, because the mean of its divisors is an integer number (2476551).

Almost surely, 2^71313750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71313750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99062040).

71313750 is an abundant number, since it is smaller than the sum of its proper divisors (126810330).

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

71313750 is a wasteful number, since it uses less digits than its factorization.

71313750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2144 (or 2123 counting only the distinct ones).

The product of its (nonzero) digits is 2205, while the sum is 27.

The square root of 71313750 is about 8444.7468878587. The cubic root of 71313750 is about 414.6908230891.

The spelling of 71313750 in words is "seventy-one million, three hundred thirteen thousand, seven hundred fifty".