71153280 has 192 divisors, whose sum is σ = 268276320. Its totient is φ = 17233920.

The previous prime is 71153273. The next prime is 71153281. The reversal of 71153280 is 8235117.

It is a tau number, because it is divible by the number of its divisors (192).

It is not an unprimeable number, because it can be changed into a prime (71153281) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62799 + ... + 63921.

Almost surely, 2^71153280 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 71153280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134138160).

71153280 is an abundant number, since it is smaller than the sum of its proper divisors (197123040).

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

71153280 is a wasteful number, since it uses less digits than its factorization.

71153280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1159 (or 1144 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 71153280 is about 8435.2403640916. The cubic root of 71153280 is about 414.3795441173.

Adding to 71153280 its reverse (8235117), we get a palindrome (79388397).

It can be divided in two parts, 71 and 153280, that added together give a palindrome (153351).

The spelling of 71153280 in words is "seventy-one million, one hundred fifty-three thousand, two hundred eighty".