165151201 has 8 divisors (see below), whose sum is σ = 178274880. Its totient is φ = 152522832.

The previous prime is 165151199. The next prime is 165151237. The reversal of 165151201 is 102151561.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 165151201 - 2¹ = 165151199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165151901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123135 + ... + 124468.

It is an arithmetic number, because the mean of its divisors is an integer number (22284360).

Almost surely, 2^165151201 is an apocalyptic number.

It is an amenable number.

165151201 is a deficient number, since it is larger than the sum of its proper divisors (13123679).

165151201 is a wasteful number, since it uses less digits than its factorization.

165151201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247655.

The product of its (nonzero) digits is 300, while the sum is 22.

The square root of 165151201 is about 12851.1167219040. The cubic root of 165151201 is about 548.6481411113.

The spelling of 165151201 in words is "one hundred sixty-five million, one hundred fifty-one thousand, two hundred one".