71546945 has 8 divisors (see below), whose sum is σ = 85902144. Its totient is φ = 57207024.

The previous prime is 71546939. The next prime is 71546953. The reversal of 71546945 is 54964517.

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 71546945 - 2¹⁴ = 71530561 is a prime.

It is a Duffinian number.

It is a Curzon 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, 14372 + ... + 18698.

It is an arithmetic number, because the mean of its divisors is an integer number (10737768).

Almost surely, 2^71546945 is an apocalyptic number.

It is an amenable number.

71546945 is a deficient number, since it is larger than the sum of its proper divisors (14355199).

71546945 is a wasteful number, since it uses less digits than its factorization.

71546945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7639.

The product of its digits is 151200, while the sum is 41.

The square root of 71546945 is about 8458.5427231882. The cubic root of 71546945 is about 415.1423424236.

The spelling of 71546945 in words is "seventy-one million, five hundred forty-six thousand, nine hundred forty-five".