165400342 has 8 divisors (see below), whose sum is σ = 248265936. Its totient is φ = 82645032.

The previous prime is 165400309. The next prime is 165400343. The reversal of 165400342 is 243004561.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165400343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23713 + ... + 29884.

It is an arithmetic number, because the mean of its divisors is an integer number (31033242).

Almost surely, 2^165400342 is an apocalyptic number.

165400342 is a deficient number, since it is larger than the sum of its proper divisors (82865594).

165400342 is a wasteful number, since it uses less digits than its factorization.

165400342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55142.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 165400342 is about 12860.8064288364. The cubic root of 165400342 is about 548.9238925999.

The spelling of 165400342 in words is "one hundred sixty-five million, four hundred thousand, three hundred forty-two".