71472081 has 16 divisors (see below), whose sum is σ = 98611200. Its totient is φ = 45998160.

The previous prime is 71472067. The next prime is 71472083. The reversal of 71472081 is 18027417.

It is not a de Polignac number, because 71472081 - 2¹⁸ = 71209937 is a prime.

It is a super-2 number, since 2×71472081² = 10216516724941122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (71472083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55066 + ... + 56348.

It is an arithmetic number, because the mean of its divisors is an integer number (6163200).

Almost surely, 2^71472081 is an apocalyptic number.

It is an amenable number.

71472081 is a deficient number, since it is larger than the sum of its proper divisors (27139119).

71472081 is a wasteful number, since it uses less digits than its factorization.

71472081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1916.

The product of its (nonzero) digits is 3136, while the sum is 30.

The square root of 71472081 is about 8454.1162163765. The cubic root of 71472081 is about 414.9974955092.

Adding to 71472081 its reverse (18027417), we get a palindrome (89499498).

The spelling of 71472081 in words is "seventy-one million, four hundred seventy-two thousand, eighty-one".