531356113 has 2 divisors, whose sum is σ = 531356114. Its totient is φ = 531356112.

The previous prime is 531356101. The next prime is 531356141. The reversal of 531356113 is 311653135.

It is an a-pointer prime, because the next prime (531356141) can be obtained adding 531356113 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 527483089 + 3873024 = 22967^2 + 1968^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-531356113 is a prime.

It is not a weakly prime, because it can be changed into another prime (531356153) 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 as a sum of consecutive naturals, namely, 265678056 + 265678057.

It is an arithmetic number, because the mean of its divisors is an integer number (265678057).

Almost surely, 2^531356113 is an apocalyptic number.

It is an amenable number.

531356113 is a deficient number, since it is larger than the sum of its proper divisors (1).

531356113 is an equidigital number, since it uses as much as digits as its factorization.

531356113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4050, while the sum is 28.

The square root of 531356113 is about 23051.1629424634. The cubic root of 531356113 is about 809.9568706396.

The spelling of 531356113 in words is "five hundred thirty-one million, three hundred fifty-six thousand, one hundred thirteen".