530140891 has 4 divisors (see below), whose sum is σ = 605875312. Its totient is φ = 454406472.

The previous prime is 530140879. The next prime is 530140931. The reversal of 530140891 is 198041035.

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

It is a cyclic number.

It is not a de Polignac number, because 530140891 - 2⁵ = 530140859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (530140811) 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, 37867200 + ... + 37867213.

It is an arithmetic number, because the mean of its divisors is an integer number (151468828).

Almost surely, 2^530140891 is an apocalyptic number.

530140891 is a deficient number, since it is larger than the sum of its proper divisors (75734421).

530140891 is an equidigital number, since it uses as much as digits as its factorization.

530140891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75734420.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 530140891 is about 23024.7886200938. The cubic root of 530140891 is about 809.3389368328.

The spelling of 530140891 in words is "five hundred thirty million, one hundred forty thousand, eight hundred ninety-one".