145003446505 has 16 divisors (see below), whose sum is σ = 183400595280. Its totient is φ = 109889398528.

The previous prime is 145003446499. The next prime is 145003446529. The reversal of 145003446505 is 505644300541.

It can be written as a sum of positive squares in 8 ways, for example, as 25140005136 + 119863441369 = 158556^2 + 346213^2 .

It is a cyclic number.

It is not a de Polignac number, because 145003446505 - 2¹³ = 145003438313 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9426502 + ... + 9441871.

It is an arithmetic number, because the mean of its divisors is an integer number (11462537205).

Almost surely, 2^145003446505 is an apocalyptic number.

It is an amenable number.

145003446505 is a deficient number, since it is larger than the sum of its proper divisors (38397148775).

145003446505 is a wasteful number, since it uses less digits than its factorization.

145003446505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18868460.

The product of its (nonzero) digits is 144000, while the sum is 37.

The spelling of 145003446505 in words is "one hundred forty-five billion, three million, four hundred forty-six thousand, five hundred five".