145501565 has 16 divisors (see below), whose sum is σ = 198758016. Its totient is φ = 101217600.

The previous prime is 145501523. The next prime is 145501567. The reversal of 145501565 is 565105541.

It is not a de Polignac number, because 145501565 - 2⁸ = 145501309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145501567) 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, 56246 + ... + 58775.

It is an arithmetic number, because the mean of its divisors is an integer number (12422376).

Almost surely, 2^145501565 is an apocalyptic number.

It is an amenable number.

145501565 is a deficient number, since it is larger than the sum of its proper divisors (53256451).

145501565 is a wasteful number, since it uses less digits than its factorization.

145501565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115060.

The product of its (nonzero) digits is 15000, while the sum is 32.

The square root of 145501565 is about 12062.4029529775. The cubic root of 145501565 is about 525.9638409028.

The spelling of 145501565 in words is "one hundred forty-five million, five hundred one thousand, five hundred sixty-five".