165693142 has 8 divisors (see below), whose sum is σ = 253827936. Its totient is φ = 81083832.

The previous prime is 165693139. The next prime is 165693161. The reversal of 165693142 is 241396561.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 881253 + ... + 881440.

It is an arithmetic number, because the mean of its divisors is an integer number (31728492).

Almost surely, 2^165693142 is an apocalyptic number.

165693142 is a deficient number, since it is larger than the sum of its proper divisors (88134794).

165693142 is a wasteful number, since it uses less digits than its factorization.

165693142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1762742.

The product of its digits is 38880, while the sum is 37.

The square root of 165693142 is about 12872.1848184370. The cubic root of 165693142 is about 549.2476125428.

The spelling of 165693142 in words is "one hundred sixty-five million, six hundred ninety-three thousand, one hundred forty-two".