405102125 has 16 divisors (see below), whose sum is σ = 511979520. Its totient is φ = 319971600.

The previous prime is 405102067. The next prime is 405102143. The reversal of 405102125 is 521201504.

It is not a de Polignac number, because 405102125 - 2²⁸ = 136666669 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 405102097 and 405102106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10637 + ... + 30386.

It is an arithmetic number, because the mean of its divisors is an integer number (31998720).

Almost surely, 2^405102125 is an apocalyptic number.

It is an amenable number.

405102125 is a deficient number, since it is larger than the sum of its proper divisors (106877395).

405102125 is an equidigital number, since it uses as much as digits as its factorization.

405102125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41117 (or 41107 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 405102125 is about 20127.1489535900. The cubic root of 405102125 is about 739.9258051982.

Adding to 405102125 its reverse (521201504), we get a palindrome (926303629).

The spelling of 405102125 in words is "four hundred five million, one hundred two thousand, one hundred twenty-five".