165868034 has 4 divisors (see below), whose sum is σ = 248802054. Its totient is φ = 82934016.

The previous prime is 165868033. The next prime is 165868039. The reversal of 165868034 is 430868561.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 430868561 = 797 ⋅540613.

It can be written as a sum of positive squares in only one way, i.e., 163456225 + 2411809 = 12785^2 + 1553^2 .

It is a junction number, because it is equal to n+sod(n) for n = 165867982 and 165868000.

It is not an unprimeable number, because it can be changed into a prime (165868033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41467007 + ... + 41467010.

Almost surely, 2^165868034 is an apocalyptic number.

165868034 is a deficient number, since it is larger than the sum of its proper divisors (82934020).

165868034 is an equidigital number, since it uses as much as digits as its factorization.

165868034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82934019.

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 165868034 is about 12878.9764344842. The cubic root of 165868034 is about 549.4407914009.

The spelling of 165868034 in words is "one hundred sixty-five million, eight hundred sixty-eight thousand, thirty-four".