523691129 has 8 divisors (see below), whose sum is σ = 593658240. Its totient is φ = 457964496.

The previous prime is 523691111. The next prime is 523691143. The reversal of 523691129 is 921196325.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 523691129 - 2¹⁶ = 523625593 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 523691092 and 523691101.

It is not an unprimeable number, because it can be changed into a prime (523691159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1059857 + ... + 1060350.

It is an arithmetic number, because the mean of its divisors is an integer number (74207280).

Almost surely, 2^523691129 is an apocalyptic number.

It is an amenable number.

523691129 is a deficient number, since it is larger than the sum of its proper divisors (69967111).

523691129 is a wasteful number, since it uses less digits than its factorization.

523691129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2120239.

The product of its digits is 29160, while the sum is 38.

The square root of 523691129 is about 22884.2987438986. The cubic root of 523691129 is about 806.0433619511.

The spelling of 523691129 in words is "five hundred twenty-three million, six hundred ninety-one thousand, one hundred twenty-nine".