150643505 has 8 divisors (see below), whose sum is σ = 180840552. Its totient is φ = 120469248.

The previous prime is 150643499. The next prime is 150643523. The reversal of 150643505 is 505346051.

150643505 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 70576801 + 80066704 = 8401^2 + 8948^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 150643505 - 2⁸ = 150643249 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17279 + ... + 24491.

It is an arithmetic number, because the mean of its divisors is an integer number (22605069).

Almost surely, 2^150643505 is an apocalyptic number.

It is an amenable number.

150643505 is a deficient number, since it is larger than the sum of its proper divisors (30197047).

150643505 is an equidigital number, since it uses as much as digits as its factorization.

150643505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11395.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 150643505 is about 12273.6915799608. The cubic root of 150643505 is about 532.0880074220.

Adding to 150643505 its reverse (505346051), we get a palindrome (655989556).

The spelling of 150643505 in words is "one hundred fifty million, six hundred forty-three thousand, five hundred five".