145440616089 has 4 divisors (see below), whose sum is σ = 193920821456. Its totient is φ = 96960410724.

The previous prime is 145440616067. The next prime is 145440616129. The reversal of 145440616089 is 980616044541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 145440616089 - 2²³ = 145432227481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145440616019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24240102679 + ... + 24240102684.

It is an arithmetic number, because the mean of its divisors is an integer number (48480205364).

Almost surely, 2^145440616089 is an apocalyptic number.

It is an amenable number.

145440616089 is a deficient number, since it is larger than the sum of its proper divisors (48480205367).

145440616089 is an equidigital number, since it uses as much as digits as its factorization.

145440616089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48480205366.

The product of its (nonzero) digits is 829440, while the sum is 48.

The spelling of 145440616089 in words is "one hundred forty-five billion, four hundred forty million, six hundred sixteen thousand, eighty-nine".