163849445 has 16 divisors (see below), whose sum is σ = 209304000. Its totient is φ = 122779008.

The previous prime is 163849423. The next prime is 163849457. The reversal of 163849445 is 544948361.

It is a cyclic number.

It is not a de Polignac number, because 163849445 - 2⁶ = 163849381 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 163849396 and 163849405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1235 + ... + 18144.

It is an arithmetic number, because the mean of its divisors is an integer number (13081500).

Almost surely, 2^163849445 is an apocalyptic number.

It is an amenable number.

163849445 is a deficient number, since it is larger than the sum of its proper divisors (45454555).

163849445 is a wasteful number, since it uses less digits than its factorization.

163849445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19492.

The product of its digits is 414720, while the sum is 44.

The square root of 163849445 is about 12800.3689399954. The cubic root of 163849445 is about 547.2028175280.

The spelling of 163849445 in words is "one hundred sixty-three million, eight hundred forty-nine thousand, four hundred forty-five".