130505223 has 16 divisors (see below), whose sum is σ = 176923136. Its totient is φ = 85557600.

The previous prime is 130505201. The next prime is 130505267. The reversal of 130505223 is 322505031.

It is not a de Polignac number, because 130505223 - 2¹⁸ = 130243079 is a prime.

It is a super-2 number, since 2×130505223² = 34063226460559458, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 130505223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130505273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45261 + ... + 48057.

It is an arithmetic number, because the mean of its divisors is an integer number (11057696).

Almost surely, 2^130505223 is an apocalyptic number.

130505223 is a deficient number, since it is larger than the sum of its proper divisors (46417913).

130505223 is a wasteful number, since it uses less digits than its factorization.

130505223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3054.

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

The square root of 130505223 is about 11423.8882610082. Note that the first 3 decimals coincide. The cubic root of 130505223 is about 507.2350990394.

The spelling of 130505223 in words is "one hundred thirty million, five hundred five thousand, two hundred twenty-three".