525384139 has 8 divisors (see below), whose sum is σ = 608664800. Its totient is φ = 444159936.

The previous prime is 525384113. The next prime is 525384149. The reversal of 525384139 is 931483525.

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 525384139 - 2²⁷ = 391166411 is a prime.

It is a super-3 number, since 3×525384139³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (525384149) 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 7 ways as a sum of consecutive naturals, for example, 513564 + ... + 514585.

It is an arithmetic number, because the mean of its divisors is an integer number (76083100).

Almost surely, 2^525384139 is an apocalyptic number.

525384139 is a deficient number, since it is larger than the sum of its proper divisors (83280661).

525384139 is a wasteful number, since it uses less digits than its factorization.

525384139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028229.

The product of its digits is 129600, while the sum is 40.

The square root of 525384139 is about 22921.2595421805. The cubic root of 525384139 is about 806.9110308741.

The spelling of 525384139 in words is "five hundred twenty-five million, three hundred eighty-four thousand, one hundred thirty-nine".