71354457 has 12 divisors (see below), whose sum is σ = 109130580. Its totient is φ = 44771328.

The previous prime is 71354447. The next prime is 71354477. The reversal of 71354457 is 75445317.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 63536841 + 7817616 = 7971^2 + 2796^2 .

It is not a de Polignac number, because 71354457 - 2¹⁰ = 71353433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71354407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 233032 + ... + 233337.

It is an arithmetic number, because the mean of its divisors is an integer number (9094215).

Almost surely, 2^71354457 is an apocalyptic number.

It is an amenable number.

71354457 is a deficient number, since it is larger than the sum of its proper divisors (37776123).

71354457 is a wasteful number, since it uses less digits than its factorization.

71354457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466392 (or 466389 counting only the distinct ones).

The product of its digits is 58800, while the sum is 36.

The square root of 71354457 is about 8447.1567405844. The cubic root of 71354457 is about 414.7697120757.

The spelling of 71354457 in words is "seventy-one million, three hundred fifty-four thousand, four hundred fifty-seven".