70545 has 8 divisors (see below), whose sum is σ = 112896. Its totient is φ = 37616.

The previous prime is 70537. The next prime is 70549. The reversal of 70545 is 54507.

70545 is nontrivially palindromic in base 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 70545 - 2³ = 70537 is a prime.

It is an alternating number because its digits alternate between odd and even.

70545 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (70549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2337 + ... + 2366.

It is an arithmetic number, because the mean of its divisors is an integer number (14112).

2⁷⁰⁵⁴⁵ is an apocalyptic number.

It is an amenable number.

70545 is a deficient number, since it is larger than the sum of its proper divisors (42351).

70545 is a wasteful number, since it uses less digits than its factorization.

70545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4711.

The product of its (nonzero) digits is 700, while the sum is 21.

The square root of 70545 is about 265.6030873315. The cubic root of 70545 is about 41.3195337793.

The spelling of 70545 in words is "seventy thousand, five hundred forty-five".