165247156 has 12 divisors (see below), whose sum is σ = 289327360. Its totient is φ = 82582200.

The previous prime is 165247129. The next prime is 165247169. The reversal of 165247156 is 651742561.

It is a happy number.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270 + ... + 18181.

Almost surely, 2^165247156 is an apocalyptic number.

It is an amenable number.

165247156 is a deficient number, since it is larger than the sum of its proper divisors (124080204).

165247156 is a wasteful number, since it uses less digits than its factorization.

165247156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20694 (or 20692 counting only the distinct ones).

The product of its digits is 50400, while the sum is 37.

The square root of 165247156 is about 12854.8495129270. The cubic root of 165247156 is about 548.7543777789.

The spelling of 165247156 in words is "one hundred sixty-five million, two hundred forty-seven thousand, one hundred fifty-six".