145204021165 has 8 divisors (see below), whose sum is σ = 199136943360. Its totient is φ = 99568471632.

The previous prime is 145204021163. The next prime is 145204021169. The reversal of 145204021165 is 561120402541.

It is a happy number.

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

It is not a de Polignac number, because 145204021165 - 2¹ = 145204021163 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145204021163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2074343125 + ... + 2074343194.

It is an arithmetic number, because the mean of its divisors is an integer number (24892117920).

Almost surely, 2^145204021165 is an apocalyptic number.

It is an amenable number.

145204021165 is a deficient number, since it is larger than the sum of its proper divisors (53932922195).

145204021165 is an equidigital number, since it uses as much as digits as its factorization.

145204021165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4148686331.

The product of its (nonzero) digits is 9600, while the sum is 31.

The spelling of 145204021165 in words is "one hundred forty-five billion, two hundred four million, twenty-one thousand, one hundred sixty-five".