165336145 has 8 divisors (see below), whose sum is σ = 213665256. Its totient is φ = 122094336.

The previous prime is 165336133. The next prime is 165336151. The reversal of 165336145 is 541633561.

165336145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 8485569 + 156850576 = 2913^2 + 12524^2 .

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

It is not a de Polignac number, because 165336145 - 2⁹ = 165335633 is a prime.

It is a super-2 number, since 2×165336145² = 54672081686922050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 165336145.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1271752 + ... + 1271881.

It is an arithmetic number, because the mean of its divisors is an integer number (26708157).

Almost surely, 2^165336145 is an apocalyptic number.

It is an amenable number.

165336145 is a deficient number, since it is larger than the sum of its proper divisors (48329111).

165336145 is a wasteful number, since it uses less digits than its factorization.

165336145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2543651.

The product of its digits is 32400, while the sum is 34.

The square root of 165336145 is about 12858.3103477868. The cubic root of 165336145 is about 548.8528652835.

The spelling of 165336145 in words is "one hundred sixty-five million, three hundred thirty-six thousand, one hundred forty-five".