165212847 has 12 divisors (see below), whose sum is σ = 251201080. Its totient is φ = 104344848.

The previous prime is 165212791. The next prime is 165212867. The reversal of 165212847 is 748212561.

It is not a de Polignac number, because 165212847 - 2⁸ = 165212591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165212867) by changing a digit.

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, 482908 + ... + 483249.

Almost surely, 2^165212847 is an apocalyptic number.

165212847 is a deficient number, since it is larger than the sum of its proper divisors (85988233).

165212847 is a wasteful number, since it uses less digits than its factorization.

165212847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966182 (or 966179 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 165212847 is about 12853.5149667319. The cubic root of 165212847 is about 548.7163972623.

The spelling of 165212847 in words is "one hundred sixty-five million, two hundred twelve thousand, eight hundred forty-seven".