165207 has 8 divisors (see below), whose sum is σ = 251776. Its totient is φ = 94392.

The previous prime is 165203. The next prime is 165211. The reversal of 165207 is 702561.

165207 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (165203) and next prime (165211).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 165207 - 2² = 165203 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 7867 = 165207 / (1 + 6 + 5 + 2 + 0 + 7).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3913 + ... + 3954.

It is an arithmetic number, because the mean of its divisors is an integer number (31472).

2¹⁶⁵²⁰⁷ is an apocalyptic number.

165207 is a deficient number, since it is larger than the sum of its proper divisors (86569).

165207 is an equidigital number, since it uses as much as digits as its factorization.

165207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7877.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 165207 is about 406.4566397539. The cubic root of 165207 is about 54.8709924032.

Adding to 165207 its reverse (702561), we get a palindrome (867768).

The spelling of 165207 in words is "one hundred sixty-five thousand, two hundred seven".