165029709 has 16 divisors (see below), whose sum is σ = 244611584. Its totient is φ = 98280000.

The previous prime is 165029671. The next prime is 165029719. The reversal of 165029709 is 907920561.

It is not a de Polignac number, because 165029709 - 2⁸ = 165029453 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165029719) 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, 67042 + ... + 69459.

It is an arithmetic number, because the mean of its divisors is an integer number (15288224).

Almost surely, 2^165029709 is an apocalyptic number.

It is an amenable number.

165029709 is a deficient number, since it is larger than the sum of its proper divisors (79581875).

165029709 is a wasteful number, since it uses less digits than its factorization.

165029709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136548.

The product of its (nonzero) digits is 34020, while the sum is 39.

The square root of 165029709 is about 12846.3889478717. The cubic root of 165029709 is about 548.5135720794.

The spelling of 165029709 in words is "one hundred sixty-five million, twenty-nine thousand, seven hundred nine".