145197165 has 8 divisors (see below), whose sum is σ = 232315488. Its totient is φ = 77438480.

The previous prime is 145197163. The next prime is 145197209. The reversal of 145197165 is 561791541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145197165 - 2¹ = 145197163 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145197163) 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, 4839891 + ... + 4839920.

It is an arithmetic number, because the mean of its divisors is an integer number (29039436).

Almost surely, 2^145197165 is an apocalyptic number.

145197165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145197165 is a deficient number, since it is larger than the sum of its proper divisors (87118323).

145197165 is an equidigital number, since it uses as much as digits as its factorization.

145197165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9679819.

The product of its digits is 37800, while the sum is 39.

The square root of 145197165 is about 12049.7786286720. The cubic root of 145197165 is about 525.5967997820.

The spelling of 145197165 in words is "one hundred forty-five million, one hundred ninety-seven thousand, one hundred sixty-five".