150530503 has 4 divisors (see below), whose sum is σ = 155721240. Its totient is φ = 145339768.

The previous prime is 150530477. The next prime is 150530507. The reversal of 150530503 is 305035051.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 305035051 = 1489 ⋅204859.

It is a cyclic number.

It is not a de Polignac number, because 150530503 - 2⁹ = 150529991 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 (150530507) 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, 2595325 + ... + 2595382.

It is an arithmetic number, because the mean of its divisors is an integer number (38930310).

Almost surely, 2^150530503 is an apocalyptic number.

150530503 is a deficient number, since it is larger than the sum of its proper divisors (5190737).

150530503 is an equidigital number, since it uses as much as digits as its factorization.

150530503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5190736.

The product of its (nonzero) digits is 1125, while the sum is 22.

The square root of 150530503 is about 12269.0872928674. The cubic root of 150530503 is about 531.9549293323.

Adding to 150530503 its reverse (305035051), we get a palindrome (455565554).

The spelling of 150530503 in words is "one hundred fifty million, five hundred thirty thousand, five hundred three".