165146628 has 12 divisors (see below), whose sum is σ = 385342160. Its totient is φ = 55048872.

The previous prime is 165146627. The next prime is 165146629. The reversal of 165146628 is 826641561.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (165146627) and next prime (165146629).

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (165146621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6881098 + ... + 6881121.

Almost surely, 2^165146628 is an apocalyptic number.

It is an amenable number.

165146628 is an abundant number, since it is smaller than the sum of its proper divisors (220195532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165146628 is a wasteful number, since it uses less digits than its factorization.

165146628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13762226 (or 13762224 counting only the distinct ones).

The product of its digits is 69120, while the sum is 39.

The square root of 165146628 is about 12850.9387983913. The cubic root of 165146628 is about 548.6430770829.

The spelling of 165146628 in words is "one hundred sixty-five million, one hundred forty-six thousand, six hundred twenty-eight".