230501503 has 4 divisors (see below), whose sum is σ = 230554048. Its totient is φ = 230448960.

The previous prime is 230501477. The next prime is 230501533. The reversal of 230501503 is 305105032.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-230501503 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 (230501533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19026 + ... + 28687.

It is an arithmetic number, because the mean of its divisors is an integer number (57638512).

Almost surely, 2^230501503 is an apocalyptic number.

230501503 is a deficient number, since it is larger than the sum of its proper divisors (52545).

230501503 is an equidigital number, since it uses as much as digits as its factorization.

230501503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52544.

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 230501503 is about 15182.2759492772. The cubic root of 230501503 is about 613.1375589781.

Adding to 230501503 its reverse (305105032), we get a palindrome (535606535).

The spelling of 230501503 in words is "two hundred thirty million, five hundred one thousand, five hundred three".