165470730 has 16 divisors (see below), whose sum is σ = 397129824. Its totient is φ = 44125520.

The previous prime is 165470729. The next prime is 165470731. The reversal of 165470730 is 37074561.

It is an interprime number because it is at equal distance from previous prime (165470729) and next prime (165470731).

It is a junction number, because it is equal to n+sod(n) for n = 165470691 and 165470700.

It is not an unprimeable number, because it can be changed into a prime (165470731) 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, 2757816 + ... + 2757875.

It is an arithmetic number, because the mean of its divisors is an integer number (24820614).

Almost surely, 2^165470730 is an apocalyptic number.

165470730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165470730 is an abundant number, since it is smaller than the sum of its proper divisors (231659094).

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

165470730 is a wasteful number, since it uses less digits than its factorization.

165470730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5515701.

The product of its (nonzero) digits is 17640, while the sum is 33.

The square root of 165470730 is about 12863.5426691095. The cubic root of 165470730 is about 549.0017484956.

The spelling of 165470730 in words is "one hundred sixty-five million, four hundred seventy thousand, seven hundred thirty".