165240229 has 8 divisors (see below), whose sum is σ = 206013888. Its totient is φ = 128758560.

The previous prime is 165240227. The next prime is 165240253. The reversal of 165240229 is 922042561.

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

It is not a de Polignac number, because 165240229 - 2¹ = 165240227 is a prime.

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 165240229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165240223) 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, 1072912 + ... + 1073065.

It is an arithmetic number, because the mean of its divisors is an integer number (25751736).

Almost surely, 2^165240229 is an apocalyptic number.

It is an amenable number.

165240229 is a deficient number, since it is larger than the sum of its proper divisors (40773659).

165240229 is a wasteful number, since it uses less digits than its factorization.

165240229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2145995.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 165240229 is about 12854.5800787112. The cubic root of 165240229 is about 548.7467099219.

The spelling of 165240229 in words is "one hundred sixty-five million, two hundred forty thousand, two hundred twenty-nine".