71481470 has 16 divisors (see below), whose sum is σ = 134261280. Its totient is φ = 27349344.

The previous prime is 71481467. The next prime is 71481479. The reversal of 71481470 is 7418417.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71481479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155165 + ... + 155624.

It is an arithmetic number, because the mean of its divisors is an integer number (8391330).

Almost surely, 2^71481470 is an apocalyptic number.

71481470 is a deficient number, since it is larger than the sum of its proper divisors (62779810).

71481470 is a wasteful number, since it uses less digits than its factorization.

71481470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310819.

The product of its (nonzero) digits is 6272, while the sum is 32.

The square root of 71481470 is about 8454.6714897742. The cubic root of 71481470 is about 415.0156668978.

Adding to 71481470 its reverse (7418417), we get a palindrome (78899887).

The spelling of 71481470 in words is "seventy-one million, four hundred eighty-one thousand, four hundred seventy".