71145417 has 16 divisors (see below), whose sum is σ = 113126400. Its totient is φ = 38886672.

The previous prime is 71145401. The next prime is 71145427. The reversal of 71145417 is 71454117.

It is not a de Polignac number, because 71145417 - 2⁴ = 71145401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71145427) 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, 73167 + ... + 74132.

It is an arithmetic number, because the mean of its divisors is an integer number (7070400).

Almost surely, 2^71145417 is an apocalyptic number.

It is an amenable number.

71145417 is a deficient number, since it is larger than the sum of its proper divisors (41980983).

71145417 is a wasteful number, since it uses less digits than its factorization.

71145417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147332.

The product of its digits is 3920, while the sum is 30.

The square root of 71145417 is about 8434.7742708386. The cubic root of 71145417 is about 414.3642794830.

The spelling of 71145417 in words is "seventy-one million, one hundred forty-five thousand, four hundred seventeen".