145003446523 has 16 divisors (see below), whose sum is σ = 161389715200. Its totient is φ = 129375066240.

The previous prime is 145003446499. The next prime is 145003446529. The reversal of 145003446523 is 325644300541.

It is a cyclic number.

It is not a de Polignac number, because 145003446523 - 2⁹ = 145003446011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145003446529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117073 + ... + 551101.

It is an arithmetic number, because the mean of its divisors is an integer number (10086857200).

Almost surely, 2^145003446523 is an apocalyptic number.

145003446523 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

145003446523 is a deficient number, since it is larger than the sum of its proper divisors (16386268677).

145003446523 is a wasteful number, since it uses less digits than its factorization.

145003446523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434902.

The product of its (nonzero) digits is 172800, while the sum is 37.

The spelling of 145003446523 in words is "one hundred forty-five billion, three million, four hundred forty-six thousand, five hundred twenty-three".