165068434 has 4 divisors (see below), whose sum is σ = 247602654. Its totient is φ = 82534216.

The previous prime is 165068429. The next prime is 165068437. The reversal of 165068434 is 434860561.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 434860561 = 17 ⋅25580033.

It can be written as a sum of positive squares in only one way, i.e., 155127025 + 9941409 = 12455^2 + 3153^2 .

It is a junction number, because it is equal to n+sod(n) for n = 165068393 and 165068402.

It is not an unprimeable number, because it can be changed into a prime (165068437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41267107 + ... + 41267110.

Almost surely, 2^165068434 is an apocalyptic number.

165068434 is a deficient number, since it is larger than the sum of its proper divisors (82534220).

165068434 is an equidigital number, since it uses as much as digits as its factorization.

165068434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82534219.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 165068434 is about 12847.8960923569. The cubic root of 165068434 is about 548.5564724901.

The spelling of 165068434 in words is "one hundred sixty-five million, sixty-eight thousand, four hundred thirty-four".