165012706 has 4 divisors (see below), whose sum is σ = 247519062. Its totient is φ = 82506352.

The previous prime is 165012647. The next prime is 165012707. The reversal of 165012706 is 607210561.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 92064025 + 72948681 = 9595^2 + 8541^2 .

It is not an unprimeable number, because it can be changed into a prime (165012707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41253175 + ... + 41253178.

Almost surely, 2^165012706 is an apocalyptic number.

165012706 is a deficient number, since it is larger than the sum of its proper divisors (82506356).

165012706 is an equidigital number, since it uses as much as digits as its factorization.

165012706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82506355.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 165012706 is about 12845.7271495233. The cubic root of 165012706 is about 548.4947336601.

The spelling of 165012706 in words is "one hundred sixty-five million, twelve thousand, seven hundred six".