165133149 has 8 divisors (see below), whose sum is σ = 223278912. Its totient is φ = 108538080.

The previous prime is 165133141. The next prime is 165133159. The reversal of 165133149 is 941331561.

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

It is not a de Polignac number, because 165133149 - 2³ = 165133141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165133141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 387424 + ... + 387849.

It is an arithmetic number, because the mean of its divisors is an integer number (27909864).

Almost surely, 2^165133149 is an apocalyptic number.

It is an amenable number.

165133149 is a deficient number, since it is larger than the sum of its proper divisors (58145763).

165133149 is an equidigital number, since it uses as much as digits as its factorization.

165133149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775347.

The product of its digits is 9720, while the sum is 33.

The square root of 165133149 is about 12850.4143512962. The cubic root of 165133149 is about 548.6281502240.

The spelling of 165133149 in words is "one hundred sixty-five million, one hundred thirty-three thousand, one hundred forty-nine".