165154242 has 16 divisors (see below), whose sum is σ = 360336672. Its totient is φ = 50046720.

The previous prime is 165154219. The next prime is 165154247. The reversal of 165154242 is 242451561.

It is not an unprimeable number, because it can be changed into a prime (165154247) 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, 1251103 + ... + 1251234.

It is an arithmetic number, because the mean of its divisors is an integer number (22521042).

Almost surely, 2^165154242 is an apocalyptic number.

165154242 is an abundant number, since it is smaller than the sum of its proper divisors (195182430).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165154242 is a wasteful number, since it uses less digits than its factorization.

165154242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2502353.

The product of its digits is 9600, while the sum is 30.

The square root of 165154242 is about 12851.2350379253. The cubic root of 165154242 is about 548.6515085886.

The spelling of 165154242 in words is "one hundred sixty-five million, one hundred fifty-four thousand, two hundred forty-two".