163840045 has 8 divisors (see below), whose sum is σ = 196681824. Its totient is φ = 131022864.

The previous prime is 163840043. The next prime is 163840049. The reversal of 163840045 is 540048361.

It is a happy number.

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 163840045 - 2¹ = 163840043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 163839989 and 163840016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163840043) 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, 15342 + ... + 23728.

It is an arithmetic number, because the mean of its divisors is an integer number (24585228).

Almost surely, 2^163840045 is an apocalyptic number.

It is an amenable number.

163840045 is a deficient number, since it is larger than the sum of its proper divisors (32841779).

163840045 is an equidigital number, since it uses as much as digits as its factorization.

163840045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12299.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 163840045 is about 12800.0017578124. The cubic root of 163840045 is about 547.1923530335.

The spelling of 163840045 in words is "one hundred sixty-three million, eight hundred forty thousand, forty-five".