145908023489 has 8 divisors (see below), whose sum is σ = 146562624000. Its totient is φ = 145253575152.

The previous prime is 145908023467. The next prime is 145908023509. The reversal of 145908023489 is 984320809541.

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

It is not a de Polignac number, because 145908023489 - 2¹⁶ = 145907957953 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145908023489.

It is not an unprimeable number, because it can be changed into a prime (145908023449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2169632 + ... + 2235870.

It is an arithmetic number, because the mean of its divisors is an integer number (18320328000).

Almost surely, 2^145908023489 is an apocalyptic number.

It is an amenable number.

145908023489 is a deficient number, since it is larger than the sum of its proper divisors (654600511).

145908023489 is an equidigital number, since it uses as much as digits as its factorization.

145908023489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76087.

The product of its (nonzero) digits is 2488320, while the sum is 53.

The spelling of 145908023489 in words is "one hundred forty-five billion, nine hundred eight million, twenty-three thousand, four hundred eighty-nine".