163748949 has 32 divisors (see below), whose sum is σ = 273149184. Its totient is φ = 84948480.

The previous prime is 163748929. The next prime is 163748951. The reversal of 163748949 is 949847361.

It is not a de Polignac number, because 163748949 - 2¹⁹ = 163224661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163748929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11737 + ... + 21569.

It is an arithmetic number, because the mean of its divisors is an integer number (8535912).

Almost surely, 2^163748949 is an apocalyptic number.

It is an amenable number.

163748949 is a deficient number, since it is larger than the sum of its proper divisors (109400235).

163748949 is a wasteful number, since it uses less digits than its factorization.

163748949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9917.

The product of its digits is 1306368, while the sum is 51.

The square root of 163748949 is about 12796.4428260357. The cubic root of 163748949 is about 547.0909202084.

The spelling of 163748949 in words is "one hundred sixty-three million, seven hundred forty-eight thousand, nine hundred forty-nine".