165151530 has 24 divisors (see below), whose sum is σ = 429394212. Its totient is φ = 44040384.

The previous prime is 165151513. The next prime is 165151531. The reversal of 165151530 is 35151561.

165151530 is a `hidden beast` number, since 1 + 651 + 5 + 1 + 5 + 3 + 0 = 666.

165151530 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 135699201 + 29452329 = 11649^2 + 5427^2 .

It is a super-2 number, since 2×165151530² = 54550055722681800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 165151494 and 165151503.

It is not an unprimeable number, because it can be changed into a prime (165151531) 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 11 ways as a sum of consecutive naturals, for example, 917419 + ... + 917598.

Almost surely, 2^165151530 is an apocalyptic number.

165151530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165151530 is an abundant number, since it is smaller than the sum of its proper divisors (264242682).

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

165151530 is a wasteful number, since it uses less digits than its factorization.

165151530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1835030 (or 1835027 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 27.

The square root of 165151530 is about 12851.1295223416. The cubic root of 165151530 is about 548.6485054342.

The spelling of 165151530 in words is "one hundred sixty-five million, one hundred fifty-one thousand, five hundred thirty".