71280130 has 32 divisors (see below), whose sum is σ = 132378624. Its totient is φ = 27614016.

The previous prime is 71280119. The next prime is 71280137. The reversal of 71280130 is 3108217.

It is not an unprimeable number, because it can be changed into a prime (71280137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141459 + ... + 141961.

It is an arithmetic number, because the mean of its divisors is an integer number (4136832).

Almost surely, 2^71280130 is an apocalyptic number.

71280130 is a deficient number, since it is larger than the sum of its proper divisors (61098494).

71280130 is a wasteful number, since it uses less digits than its factorization.

71280130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 71280130 is about 8442.7560665934. The cubic root of 71280130 is about 414.6256458642.

Adding to 71280130 its reverse (3108217), we get a palindrome (74388347).

The spelling of 71280130 in words is "seventy-one million, two hundred eighty thousand, one hundred thirty".