165002101 has 16 divisors (see below), whose sum is σ = 184504320. Its totient is φ = 146274480.

The previous prime is 165002087. The next prime is 165002107. The reversal of 165002101 is 101200561.

It is a happy number.

It is not a de Polignac number, because 165002101 - 2¹⁵ = 164969333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165002107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226600 + ... + 227326.

It is an arithmetic number, because the mean of its divisors is an integer number (11531520).

Almost surely, 2^165002101 is an apocalyptic number.

165002101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

165002101 is a deficient number, since it is larger than the sum of its proper divisors (19502219).

165002101 is a wasteful number, since it uses less digits than its factorization.

165002101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 165002101 is about 12845.3143597189. The cubic root of 165002101 is about 548.4829832291.

Adding to 165002101 its reverse (101200561), we get a palindrome (266202662).

The spelling of 165002101 in words is "one hundred sixty-five million, two thousand, one hundred one".