71254280 has 16 divisors (see below), whose sum is σ = 160322220. Its totient is φ = 28501696.

The previous prime is 71254279. The next prime is 71254289. The reversal of 71254280 is 8245217.

It can be written as a sum of positive squares in 2 ways, for example, as 62948356 + 8305924 = 7934^2 + 2882^2 .

It is not an unprimeable number, because it can be changed into a prime (71254289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 890639 + ... + 890718.

Almost surely, 2^71254280 is an apocalyptic number.

It is an amenable number.

71254280 is an abundant number, since it is smaller than the sum of its proper divisors (89067940).

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

71254280 is a wasteful number, since it uses less digits than its factorization.

71254280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1781368 (or 1781364 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 71254280 is about 8441.2250295795. The cubic root of 71254280 is about 414.5755179681.

Adding to 71254280 its reverse (8245217), we get a palindrome (79499497).

The spelling of 71254280 in words is "seventy-one million, two hundred fifty-four thousand, two hundred eighty".