163249838 has 4 divisors (see below), whose sum is σ = 244874760. Its totient is φ = 81624918.

The previous prime is 163249817. The next prime is 163249841. The reversal of 163249838 is 838942361.

163249838 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40812458 + ... + 40812461.

It is an arithmetic number, because the mean of its divisors is an integer number (61218690).

Almost surely, 2^163249838 is an apocalyptic number.

163249838 is a deficient number, since it is larger than the sum of its proper divisors (81624922).

163249838 is an equidigital number, since it uses as much as digits as its factorization.

163249838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81624921.

The product of its digits is 248832, while the sum is 44.

The square root of 163249838 is about 12776.9259996292. The cubic root of 163249838 is about 546.5345054466.

It can be divided in two parts, 16324 and 9838, that added together give a palindrome (26162).

The spelling of 163249838 in words is "one hundred sixty-three million, two hundred forty-nine thousand, eight hundred thirty-eight".