531314947 has 4 divisors (see below), whose sum is σ = 532467936. Its totient is φ = 530161960.

The previous prime is 531314933. The next prime is 531314969. The reversal of 531314947 is 749413135.

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 531314947 - 2¹⁵ = 531282179 is a prime.

It is a super-2 number, since 2×531314947² = 564591145811225618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (531314977) 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, 575803 + ... + 576724.

It is an arithmetic number, because the mean of its divisors is an integer number (133116984).

Almost surely, 2^531314947 is an apocalyptic number.

531314947 is a deficient number, since it is larger than the sum of its proper divisors (1152989).

531314947 is a wasteful number, since it uses less digits than its factorization.

531314947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1152988.

The product of its digits is 45360, while the sum is 37.

The square root of 531314947 is about 23050.2699984187. The cubic root of 531314947 is about 809.9359533773.

The spelling of 531314947 in words is "five hundred thirty-one million, three hundred fourteen thousand, nine hundred forty-seven".