71457441 has 16 divisors (see below), whose sum is σ = 104364288. Its totient is φ = 43130000.

The previous prime is 71457431. The next prime is 71457467. The reversal of 71457441 is 14475417.

It is a cyclic number.

It is not a de Polignac number, because 71457441 - 2¹⁰ = 71456417 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (71457431) 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, 3970 + ... + 12596.

It is an arithmetic number, because the mean of its divisors is an integer number (6522768).

Almost surely, 2^71457441 is an apocalyptic number.

It is an amenable number.

71457441 is a deficient number, since it is larger than the sum of its proper divisors (32906847).

71457441 is a wasteful number, since it uses less digits than its factorization.

71457441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8892.

The product of its digits is 15680, while the sum is 33.

The square root of 71457441 is about 8453.2503216219. The cubic root of 71457441 is about 414.9691582054.

The spelling of 71457441 in words is "seventy-one million, four hundred fifty-seven thousand, four hundred forty-one".