19530165 has 16 divisors (see below), whose sum is σ = 31716288. Its totient is φ = 10260096.

The previous prime is 19530163. The next prime is 19530167. The reversal of 19530165 is 56103591.

It is an interprime number because it is at equal distance from previous prime (19530163) and next prime (19530167).

It is not a de Polignac number, because 19530165 - 2¹ = 19530163 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19530163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8712 + ... + 10721.

It is an arithmetic number, because the mean of its divisors is an integer number (1982268).

Almost surely, 2^19530165 is an apocalyptic number.

19530165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19530165 is a deficient number, since it is larger than the sum of its proper divisors (12186123).

19530165 is a wasteful number, since it uses less digits than its factorization.

19530165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19508.

The product of its (nonzero) digits is 4050, while the sum is 30.

The square root of 19530165 is about 4419.2946269739. The cubic root of 19530165 is about 269.2993493635.

The spelling of 19530165 in words is "nineteen million, five hundred thirty thousand, one hundred sixty-five".