405525130 has 16 divisors (see below), whose sum is σ = 730242504. Its totient is φ = 162144000.

The previous prime is 405525119. The next prime is 405525149. The reversal of 405525130 is 31525504.

It can be written as a sum of positive squares in 4 ways, for example, as 334780209 + 70744921 = 18297^2 + 8411^2 .

It is a junction number, because it is equal to n+sod(n) for n = 405525095 and 405525104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23254 + ... + 36766.

Almost surely, 2^405525130 is an apocalyptic number.

405525130 is a deficient number, since it is larger than the sum of its proper divisors (324717374).

405525130 is a wasteful number, since it uses less digits than its factorization.

405525130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16521.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 405525130 is about 20137.6545307541. The cubic root of 405525130 is about 740.1832575109.

The spelling of 405525130 in words is "four hundred five million, five hundred twenty-five thousand, one hundred thirty".