71255345 has 8 divisors (see below), whose sum is σ = 97721664. Its totient is φ = 48860784.

The previous prime is 71255281. The next prime is 71255351. The reversal of 71255345 is 54355217.

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

It is not a de Polignac number, because 71255345 - 2⁶ = 71255281 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 1017899 + ... + 1017968.

It is an arithmetic number, because the mean of its divisors is an integer number (12215208).

Almost surely, 2^71255345 is an apocalyptic number.

It is an amenable number.

71255345 is a deficient number, since it is larger than the sum of its proper divisors (26466319).

71255345 is a wasteful number, since it uses less digits than its factorization.

71255345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2035879.

The product of its digits is 21000, while the sum is 32.

The square root of 71255345 is about 8441.2881126046. The cubic root of 71255345 is about 414.5775834381.

The spelling of 71255345 in words is "seventy-one million, two hundred fifty-five thousand, three hundred forty-five".