163242545 has 8 divisors (see below), whose sum is σ = 196654824. Its totient is φ = 130084864.

The previous prime is 163242539. The next prime is 163242553. The reversal of 163242545 is 545242361.

163242545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 33373729 + 129868816 = 5777^2 + 11396^2 .

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 163242545 - 2⁴ = 163242529 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, 62234 + ... + 64803.

It is an arithmetic number, because the mean of its divisors is an integer number (24581853).

Almost surely, 2^163242545 is an apocalyptic number.

It is an amenable number.

163242545 is a deficient number, since it is larger than the sum of its proper divisors (33412279).

163242545 is a wasteful number, since it uses less digits than its factorization.

163242545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127299.

The product of its digits is 28800, while the sum is 32.

The square root of 163242545 is about 12776.6405991559. The cubic root of 163242545 is about 546.5263667238.

The spelling of 163242545 in words is "one hundred sixty-three million, two hundred forty-two thousand, five hundred forty-five".