71256423 has 8 divisors (see below), whose sum is σ = 108581248. Its totient is φ = 40717944.

The previous prime is 71256421. The next prime is 71256457. The reversal of 71256423 is 32465217.

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

It is not a de Polignac number, because 71256423 - 2¹ = 71256421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71256421) 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, 1696561 + ... + 1696602.

It is an arithmetic number, because the mean of its divisors is an integer number (13572656).

Almost surely, 2^71256423 is an apocalyptic number.

71256423 is a deficient number, since it is larger than the sum of its proper divisors (37324825).

71256423 is a wasteful number, since it uses less digits than its factorization.

71256423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3393173.

The product of its digits is 10080, while the sum is 30.

The square root of 71256423 is about 8441.3519651771. The cubic root of 71256423 is about 414.5796740994.

The spelling of 71256423 in words is "seventy-one million, two hundred fifty-six thousand, four hundred twenty-three".