209123248 has 10 divisors (see below), whose sum is σ = 405176324. Its totient is φ = 104561616.

The previous prime is 209123221. The next prime is 209123249. The reversal of 209123248 is 842321902.

It is not an unprimeable number, because it can be changed into a prime (209123249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6535086 + ... + 6535117.

Almost surely, 2^209123248 is an apocalyptic number.

It is an amenable number.

209123248 is a deficient number, since it is larger than the sum of its proper divisors (196053076).

209123248 is a wasteful number, since it uses less digits than its factorization.

209123248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13070211 (or 13070205 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 209123248 is about 14461.0942877778. The cubic root of 209123248 is about 593.5638437206.

The spelling of 209123248 in words is "two hundred nine million, one hundred twenty-three thousand, two hundred forty-eight".