165378142 has 32 divisors (see below), whose sum is σ = 277929792. Its totient is φ = 73396224.

The previous prime is 165378067. The next prime is 165378163. The reversal of 165378142 is 241873561.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 55638 + ... + 58534.

It is an arithmetic number, because the mean of its divisors is an integer number (8685306).

Almost surely, 2^165378142 is an apocalyptic number.

165378142 is a deficient number, since it is larger than the sum of its proper divisors (112551650).

165378142 is a wasteful number, since it uses less digits than its factorization.

165378142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3012.

The product of its digits is 40320, while the sum is 37.

The square root of 165378142 is about 12859.9433124723. The cubic root of 165378142 is about 548.8993326836.

The spelling of 165378142 in words is "one hundred sixty-five million, three hundred seventy-eight thousand, one hundred forty-two".