71382545 has 8 divisors (see below), whose sum is σ = 92248296. Its totient is φ = 52713216.

The previous prime is 71382533. The next prime is 71382557. The reversal of 71382545 is 54528317.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (71382533) and next prime (71382557).

It can be written as a sum of positive squares in 4 ways, for example, as 3682561 + 67699984 = 1919^2 + 8228^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 71382545 - 2⁴ = 71382529 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 549032 + ... + 549161.

It is an arithmetic number, because the mean of its divisors is an integer number (11531037).

Almost surely, 2^71382545 is an apocalyptic number.

It is an amenable number.

71382545 is a deficient number, since it is larger than the sum of its proper divisors (20865751).

71382545 is a wasteful number, since it uses less digits than its factorization.

71382545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1098211.

The product of its digits is 33600, while the sum is 35.

The square root of 71382545 is about 8448.8191482597. The cubic root of 71382545 is about 414.8241283138.

The spelling of 71382545 in words is "seventy-one million, three hundred eighty-two thousand, five hundred forty-five".