130503405 has 16 divisors (see below), whose sum is σ = 208981440. Its totient is φ = 69543168.

The previous prime is 130503383. The next prime is 130503421. The reversal of 130503405 is 504305031.

It is not a de Polignac number, because 130503405 - 2¹⁰ = 130502381 is a prime.

It is a super-2 number, since 2×130503405² = 34062277433188050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 19414 + ... + 25256.

It is an arithmetic number, because the mean of its divisors is an integer number (13061340).

Almost surely, 2^130503405 is an apocalyptic number.

130503405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

130503405 is a deficient number, since it is larger than the sum of its proper divisors (78478035).

130503405 is a wasteful number, since it uses less digits than its factorization.

130503405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7340.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 130503405 is about 11423.8086906250. The cubic root of 130503405 is about 507.2327436862.

Adding to 130503405 its reverse (504305031), we get a palindrome (634808436).

The spelling of 130503405 in words is "one hundred thirty million, five hundred three thousand, four hundred five".