19140165 has 32 divisors (see below), whose sum is σ = 37123200. Its totient is φ = 9279360.

The previous prime is 19140103. The next prime is 19140167. The reversal of 19140165 is 56104191.

It is not a de Polignac number, because 19140165 - 2²⁰ = 18091589 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19140167) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4960 + ... + 7929.

It is an arithmetic number, because the mean of its divisors is an integer number (1160100).

Almost surely, 2^19140165 is an apocalyptic number.

19140165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19140165 is a deficient number, since it is larger than the sum of its proper divisors (17983035).

19140165 is a wasteful number, since it uses less digits than its factorization.

19140165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12914 (or 12908 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 19140165 is about 4374.9474282556. The cubic root of 19140165 is about 267.4947272376.

The spelling of 19140165 in words is "nineteen million, one hundred forty thousand, one hundred sixty-five".