145465565 has 24 divisors (see below), whose sum is σ = 205184952. Its totient is φ = 98703360.

The previous prime is 145465543. The next prime is 145465597. The reversal of 145465565 is 565564541.

145465565 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 840889 + 144624676 = 917^2 + 12026^2 .

It is not a de Polignac number, because 145465565 - 2¹⁰ = 145464541 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20705 + ... + 26825.

It is an arithmetic number, because the mean of its divisors is an integer number (8549373).

Almost surely, 2^145465565 is an apocalyptic number.

It is an amenable number.

145465565 is a deficient number, since it is larger than the sum of its proper divisors (59719387).

145465565 is an equidigital number, since it uses as much as digits as its factorization.

145465565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6237 (or 6230 counting only the distinct ones).

The product of its digits is 360000, while the sum is 41.

The square root of 145465565 is about 12060.9106206787. The cubic root of 145465565 is about 525.9204593302.

The spelling of 145465565 in words is "one hundred forty-five million, four hundred sixty-five thousand, five hundred sixty-five".