71457841 has 32 divisors (see below), whose sum is σ = 95164160. Its totient is φ = 52068096.

The previous prime is 71457839. The next prime is 71457853. The reversal of 71457841 is 14875417.

It is a cyclic number.

It is not a de Polignac number, because 71457841 - 2¹ = 71457839 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a self number, because there is not a number n which added to its sum of digits gives 71457841.

It is not an unprimeable number, because it can be changed into a prime (71457811) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63415 + ... + 64531.

It is an arithmetic number, because the mean of its divisors is an integer number (2973880).

Almost surely, 2^71457841 is an apocalyptic number.

71457841 is the 4881-st hex number.

It is an amenable number.

71457841 is a deficient number, since it is larger than the sum of its proper divisors (23706319).

71457841 is a wasteful number, since it uses less digits than its factorization.

71457841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1193.

The product of its digits is 31360, while the sum is 37.

The square root of 71457841 is about 8453.2739811271. The cubic root of 71457841 is about 414.9699325001.

The spelling of 71457841 in words is "seventy-one million, four hundred fifty-seven thousand, eight hundred forty-one".