531214031 has 4 divisors (see below), whose sum is σ = 531264552. Its totient is φ = 531163512.

The previous prime is 531214009. The next prime is 531214043. The reversal of 531214031 is 130412135.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-531214031 is a prime.

It is a super-2 number, since 2×531214031² = 564376693462537922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 531213994 and 531214012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531214051) 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, 2876 + ... + 32721.

It is an arithmetic number, because the mean of its divisors is an integer number (132816138).

Almost surely, 2^531214031 is an apocalyptic number.

531214031 is a deficient number, since it is larger than the sum of its proper divisors (50521).

531214031 is a wasteful number, since it uses less digits than its factorization.

531214031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50520.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 531214031 is about 23048.0808528606. The cubic root of 531214031 is about 809.8846713818.

Adding to 531214031 its reverse (130412135), we get a palindrome (661626166).

The spelling of 531214031 in words is "five hundred thirty-one million, two hundred fourteen thousand, thirty-one".