165043942 has 24 divisors (see below), whose sum is σ = 290042928. Its totient is φ = 68998080.

The previous prime is 165043927. The next prime is 165043951. The reversal of 165043942 is 249340561.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 165043898 and 165043907.

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 11 ways as a sum of consecutive naturals, for example, 20028 + ... + 27040.

It is an arithmetic number, because the mean of its divisors is an integer number (12085122).

Almost surely, 2^165043942 is an apocalyptic number.

165043942 is a deficient number, since it is larger than the sum of its proper divisors (124998986).

165043942 is an equidigital number, since it uses as much as digits as its factorization.

165043942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7104 (or 7063 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 165043942 is about 12846.9429048315. The cubic root of 165043942 is about 548.5293404912.

The spelling of 165043942 in words is "one hundred sixty-five million, forty-three thousand, nine hundred forty-two".