523131207 has 4 divisors (see below), whose sum is σ = 697508280. Its totient is φ = 348754136.

The previous prime is 523131187. The next prime is 523131211. The reversal of 523131207 is 702131325.

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 523131207 - 2⁶ = 523131143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523131307) 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, 87188532 + ... + 87188537.

It is an arithmetic number, because the mean of its divisors is an integer number (174377070).

Almost surely, 2^523131207 is an apocalyptic number.

523131207 is a deficient number, since it is larger than the sum of its proper divisors (174377073).

523131207 is a wasteful number, since it uses less digits than its factorization.

523131207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174377072.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 523131207 is about 22872.0617129283. The cubic root of 523131207 is about 805.7559900440.

The spelling of 523131207 in words is "five hundred twenty-three million, one hundred thirty-one thousand, two hundred seven".