405031125 has 16 divisors (see below), whose sum is σ = 673972416. Its totient is φ = 216016400.

The previous prime is 405031117. The next prime is 405031157. The reversal of 405031125 is 521130504.

It is not a de Polignac number, because 405031125 - 2³ = 405031117 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 539667 + ... + 540416.

It is an arithmetic number, because the mean of its divisors is an integer number (42123276).

Almost surely, 2^405031125 is an apocalyptic number.

It is an amenable number.

405031125 is a deficient number, since it is larger than the sum of its proper divisors (268941291).

405031125 is a wasteful number, since it uses less digits than its factorization.

405031125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080101 (or 1080091 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 405031125 is about 20125.3850894834. The cubic root of 405031125 is about 739.8825751101.

Adding to 405031125 its reverse (521130504), we get a palindrome (926161629).

The spelling of 405031125 in words is "four hundred five million, thirty-one thousand, one hundred twenty-five".