165939134 has 16 divisors (see below), whose sum is σ = 250905600. Its totient is φ = 82307064.

The previous prime is 165939133. The next prime is 165939139. The reversal of 165939134 is 431939561.

It is a junction number, because it is equal to n+sod(n) for n = 165939091 and 165939100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165939133) 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, 171119 + ... + 172085.

It is an arithmetic number, because the mean of its divisors is an integer number (15681600).

Almost surely, 2^165939134 is an apocalyptic number.

165939134 is a deficient number, since it is larger than the sum of its proper divisors (84966466).

165939134 is a wasteful number, since it uses less digits than its factorization.

165939134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1567.

The product of its digits is 87480, while the sum is 41.

The square root of 165939134 is about 12881.7364512708. The cubic root of 165939134 is about 549.5192868547.

The spelling of 165939134 in words is "one hundred sixty-five million, nine hundred thirty-nine thousand, one hundred thirty-four".