71335530 has 96 divisors (see below), whose sum is σ = 213408000. Its totient is φ = 16194816.

The previous prime is 71335529. The next prime is 71335541. The reversal of 71335530 is 3553317.

It is a junction number, because it is equal to n+sod(n) for n = 71335494 and 71335503.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 125086 + ... + 125654.

It is an arithmetic number, because the mean of its divisors is an integer number (2223000).

Almost surely, 2^71335530 is an apocalyptic number.

71335530 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 71335530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106704000).

71335530 is an abundant number, since it is smaller than the sum of its proper divisors (142072470).

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

71335530 is a wasteful number, since it uses less digits than its factorization.

71335530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788 (or 785 counting only the distinct ones).

The product of its (nonzero) digits is 4725, while the sum is 27.

The square root of 71335530 is about 8446.0363484892. The cubic root of 71335530 is about 414.7330358311.

Adding to 71335530 its reverse (3553317), we get a palindrome (74888847).

The spelling of 71335530 in words is "seventy-one million, three hundred thirty-five thousand, five hundred thirty".