71447051 has 8 divisors (see below), whose sum is σ = 78820224. Its totient is φ = 64342080.

The previous prime is 71447041. The next prime is 71447063. The reversal of 71447051 is 15074417.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71447051 - 2⁶ = 71446987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71447041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66491 + ... + 67556.

It is an arithmetic number, because the mean of its divisors is an integer number (9852528).

Almost surely, 2^71447051 is an apocalyptic number.

71447051 is a deficient number, since it is larger than the sum of its proper divisors (7373173).

71447051 is a wasteful number, since it uses less digits than its factorization.

71447051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134101.

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 71447051 is about 8452.6357427728. The cubic root of 71447051 is about 414.9490448882.

The spelling of 71447051 in words is "seventy-one million, four hundred forty-seven thousand, fifty-one".