165240829 has 8 divisors (see below), whose sum is σ = 180390392. Its totient is φ = 150439680.

The previous prime is 165240821. The next prime is 165240841. The reversal of 165240829 is 928042561.

It can be written as a sum of positive squares in 4 ways, for example, as 1452025 + 163788804 = 1205^2 + 12798^2 .

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 165240829 - 2³ = 165240821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165240821) 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, 86112 + ... + 88009.

It is an arithmetic number, because the mean of its divisors is an integer number (22548799).

Almost surely, 2^165240829 is an apocalyptic number.

It is an amenable number.

165240829 is a deficient number, since it is larger than the sum of its proper divisors (15149563).

165240829 is a wasteful number, since it uses less digits than its factorization.

165240829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174207.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 165240829 is about 12854.6034166753. The cubic root of 165240829 is about 548.7473741017.

The spelling of 165240829 in words is "one hundred sixty-five million, two hundred forty thousand, eight hundred twenty-nine".