530140123 has 4 divisors (see below), whose sum is σ = 530288208. Its totient is φ = 529992040.

The previous prime is 530140111. The next prime is 530140201. The reversal of 530140123 is 321041035.

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-530140123 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 530140123.

It is not an unprimeable number, because it can be changed into a prime (530144123) 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, 68536 + ... + 75877.

It is an arithmetic number, because the mean of its divisors is an integer number (132572052).

Almost surely, 2^530140123 is an apocalyptic number.

530140123 is a deficient number, since it is larger than the sum of its proper divisors (148085).

530140123 is a wasteful number, since it uses less digits than its factorization.

530140123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148084.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 530140123 is about 23024.7719424102. The cubic root of 530140123 is about 809.3385460105.

Adding to 530140123 its reverse (321041035), we get a palindrome (851181158).

The spelling of 530140123 in words is "five hundred thirty million, one hundred forty thousand, one hundred twenty-three".