165413830 has 16 divisors (see below), whose sum is σ = 307350144. Its totient is φ = 64031040.

The previous prime is 165413827. The next prime is 165413837. The reversal of 165413830 is 38314561.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 165413792 and 165413801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165413837) 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 7 ways as a sum of consecutive naturals, for example, 266487 + ... + 267106.

It is an arithmetic number, because the mean of its divisors is an integer number (19209384).

Almost surely, 2^165413830 is an apocalyptic number.

165413830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165413830 is a deficient number, since it is larger than the sum of its proper divisors (141936314).

165413830 is a wasteful number, since it uses less digits than its factorization.

165413830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533631.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 165413830 is about 12861.3308020593. The cubic root of 165413830 is about 548.9388133353.

The spelling of 165413830 in words is "one hundred sixty-five million, four hundred thirteen thousand, eight hundred thirty".