523400113 has 4 divisors (see below), whose sum is σ = 537546100. Its totient is φ = 509254128.

The previous prime is 523400083. The next prime is 523400123. The reversal of 523400113 is 311004325.

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

It can be written as a sum of positive squares in 2 ways, for example, as 310006449 + 213393664 = 17607^2 + 14608^2 .

It is a cyclic number.

It is not a de Polignac number, because 523400113 - 2²¹ = 521302961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (523400123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7072938 + ... + 7073011.

It is an arithmetic number, because the mean of its divisors is an integer number (134386525).

Almost surely, 2^523400113 is an apocalyptic number.

It is an amenable number.

523400113 is a deficient number, since it is larger than the sum of its proper divisors (14145987).

523400113 is a wasteful number, since it uses less digits than its factorization.

523400113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14145986.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 523400113 is about 22877.9394395562. The cubic root of 523400113 is about 805.8940277565.

Adding to 523400113 its reverse (311004325), we get a palindrome (834404438).

The spelling of 523400113 in words is "five hundred twenty-three million, four hundred thousand, one hundred thirteen".