150387505 has 4 divisors (see below), whose sum is σ = 180465012. Its totient is φ = 120310000.

The previous prime is 150387487. The next prime is 150387521. The reversal of 150387505 is 505783051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 505783051 = 1153 ⋅438667.

It can be written as a sum of positive squares in 2 ways, for example, as 62346816 + 88040689 = 7896^2 + 9383^2 .

It is not a de Polignac number, because 150387505 - 2⁵ = 150387473 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, 15038746 + ... + 15038755.

It is an arithmetic number, because the mean of its divisors is an integer number (45116253).

Almost surely, 2^150387505 is an apocalyptic number.

It is an amenable number.

150387505 is a deficient number, since it is larger than the sum of its proper divisors (30077507).

150387505 is an equidigital number, since it uses as much as digits as its factorization.

150387505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30077506.

The product of its (nonzero) digits is 21000, while the sum is 34.

The square root of 150387505 is about 12263.2583353691. The cubic root of 150387505 is about 531.7864306127.

The spelling of 150387505 in words is "one hundred fifty million, three hundred eighty-seven thousand, five hundred five".