165201249 has 8 divisors (see below), whose sum is σ = 229845312. Its totient is φ = 105345680.

The previous prime is 165201241. The next prime is 165201251. The reversal of 165201249 is 942102561.

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 165201249 - 2³ = 165201241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (165201241) 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 7 ways as a sum of consecutive naturals, for example, 1197042 + ... + 1197179.

It is an arithmetic number, because the mean of its divisors is an integer number (28730664).

Almost surely, 2^165201249 is an apocalyptic number.

It is an amenable number.

165201249 is a deficient number, since it is larger than the sum of its proper divisors (64644063).

165201249 is a wasteful number, since it uses less digits than its factorization.

165201249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2394247.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 165201249 is about 12853.0637981767. The cubic root of 165201249 is about 548.7035569338.

The spelling of 165201249 in words is "one hundred sixty-five million, two hundred one thousand, two hundred forty-nine".