163842745 has 8 divisors (see below), whose sum is σ = 214485120. Its totient is φ = 119158320.

The previous prime is 163842743. The next prime is 163842751. The reversal of 163842745 is 547248361.

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

It is not a de Polignac number, because 163842745 - 2¹ = 163842743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 163842698 and 163842707.

It is not an unprimeable number, because it can be changed into a prime (163842743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1489425 + ... + 1489534.

It is an arithmetic number, because the mean of its divisors is an integer number (26810640).

Almost surely, 2^163842745 is an apocalyptic number.

It is an amenable number.

163842745 is a deficient number, since it is larger than the sum of its proper divisors (50642375).

163842745 is a wasteful number, since it uses less digits than its factorization.

163842745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2978975.

The product of its digits is 161280, while the sum is 40.

The square root of 163842745 is about 12800.1072261134. The cubic root of 163842745 is about 547.1953588335.

The spelling of 163842745 in words is "one hundred sixty-three million, eight hundred forty-two thousand, seven hundred forty-five".