71009454 has 8 divisors (see below), whose sum is σ = 142018920. Its totient is φ = 23669816.

The previous prime is 71009447. The next prime is 71009473. The reversal of 71009454 is 45490017.

It is a happy number.

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

71009454 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5917449 + ... + 5917460.

It is an arithmetic number, because the mean of its divisors is an integer number (17752365).

Almost surely, 2^71009454 is an apocalyptic number.

71009454 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71009454 is a wasteful number, since it uses less digits than its factorization.

71009454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11834914.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 71009454 is about 8426.7107461927. The cubic root of 71009454 is about 414.1001531365.

The spelling of 71009454 in words is "seventy-one million, nine thousand, four hundred fifty-four".