530131987 has 8 divisors (see below), whose sum is σ = 660943872. Its totient is φ = 413089800.

The previous prime is 530131969. The next prime is 530131997. The reversal of 530131987 is 789131035.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-530131987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (530131957) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3442339 + ... + 3442492.

It is an arithmetic number, because the mean of its divisors is an integer number (82617984).

Almost surely, 2^530131987 is an apocalyptic number.

530131987 is a deficient number, since it is larger than the sum of its proper divisors (130811885).

530131987 is a wasteful number, since it uses less digits than its factorization.

530131987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6884849.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 530131987 is about 23024.5952624579. The cubic root of 530131987 is about 809.3344057139.

The spelling of 530131987 in words is "five hundred thirty million, one hundred thirty-one thousand, nine hundred eighty-seven".