165106145 has 8 divisors (see below), whose sum is σ = 198373056. Its totient is φ = 131921136.

The previous prime is 165106103. The next prime is 165106147. The reversal of 165106145 is 541601561.

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 165106145 - 2¹⁰ = 165105121 is a prime.

It is a super-2 number, since 2×165106145² = 54520078233522050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165106147) 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, 15947 + ... + 24176.

It is an arithmetic number, because the mean of its divisors is an integer number (24796632).

Almost surely, 2^165106145 is an apocalyptic number.

It is an amenable number.

165106145 is a deficient number, since it is larger than the sum of its proper divisors (33266911).

165106145 is an equidigital number, since it uses as much as digits as its factorization.

165106145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40951.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 165106145 is about 12849.3636029182. The cubic root of 165106145 is about 548.5982431212.

The spelling of 165106145 in words is "one hundred sixty-five million, one hundred six thousand, one hundred forty-five".