145711585 has 4 divisors (see below), whose sum is σ = 174853908. Its totient is φ = 116569264.

The previous prime is 145711571. The next prime is 145711591. The reversal of 145711585 is 585117541.

145711585 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42810849 + 102900736 = 6543^2 + 10144^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145711585 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14571154 + ... + 14571163.

It is an arithmetic number, because the mean of its divisors is an integer number (43713477).

Almost surely, 2^145711585 is an apocalyptic number.

It is an amenable number.

145711585 is a deficient number, since it is larger than the sum of its proper divisors (29142323).

145711585 is an equidigital number, since it uses as much as digits as its factorization.

145711585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29142322.

The product of its digits is 28000, while the sum is 37.

The square root of 145711585 is about 12071.1053760623. The cubic root of 145711585 is about 526.2167816421.

The spelling of 145711585 in words is "one hundred forty-five million, seven hundred eleven thousand, five hundred eighty-five".