146505505 has 16 divisors (see below), whose sum is σ = 180564048. Its totient is φ = 114048000.

The previous prime is 146505497. The next prime is 146505509. The reversal of 146505505 is 505505641.

It can be written as a sum of positive squares in 8 ways, for example, as 3272481 + 143233024 = 1809^2 + 11968^2 .

It is not a de Polignac number, because 146505505 - 2³ = 146505497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146505509) 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, 110245 + ... + 111565.

It is an arithmetic number, because the mean of its divisors is an integer number (11285253).

Almost surely, 2^146505505 is an apocalyptic number.

It is an amenable number.

146505505 is a deficient number, since it is larger than the sum of its proper divisors (34058543).

146505505 is a wasteful number, since it uses less digits than its factorization.

146505505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1908.

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 146505505 is about 12103.9458442278. The cubic root of 146505505 is about 527.1707610586.

The spelling of 146505505 in words is "one hundred forty-six million, five hundred five thousand, five hundred five".