130223515 has 4 divisors (see below), whose sum is σ = 156268224. Its totient is φ = 104178808.

The previous prime is 130223497. The next prime is 130223537. The reversal of 130223515 is 515322031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130223515 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13022347 + ... + 13022356.

It is an arithmetic number, because the mean of its divisors is an integer number (39067056).

Almost surely, 2^130223515 is an apocalyptic number.

130223515 is a deficient number, since it is larger than the sum of its proper divisors (26044709).

130223515 is an equidigital number, since it uses as much as digits as its factorization.

130223515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26044708.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 130223515 is about 11411.5518226050. The cubic root of 130223515 is about 506.8698642977.

Adding to 130223515 its reverse (515322031), we get a palindrome (645545546).

The spelling of 130223515 in words is "one hundred thirty million, two hundred twenty-three thousand, five hundred fifteen".