150001585 has 4 divisors (see below), whose sum is σ = 180001908. Its totient is φ = 120001264.

The previous prime is 150001583. The next prime is 150001609. The reversal of 150001585 is 585100051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 585100051 = 3049 ⋅191899.

It can be written as a sum of positive squares in 2 ways, for example, as 44076321 + 105925264 = 6639^2 + 10292^2 .

It is a cyclic number.

It is not a de Polignac number, because 150001585 - 2¹ = 150001583 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (150001583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15000154 + ... + 15000163.

It is an arithmetic number, because the mean of its divisors is an integer number (45000477).

Almost surely, 2^150001585 is an apocalyptic number.

It is an amenable number.

150001585 is a deficient number, since it is larger than the sum of its proper divisors (30000323).

150001585 is an equidigital number, since it uses as much as digits as its factorization.

150001585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30000322.

The product of its (nonzero) digits is 1000, while the sum is 25.

The square root of 150001585 is about 12247.5134210990. The cubic root of 150001585 is about 531.3311560445.

The spelling of 150001585 in words is "one hundred fifty million, one thousand, five hundred eighty-five".