515014223 has 2 divisors, whose sum is σ = 515014224. Its totient is φ = 515014222.

The previous prime is 515014217. The next prime is 515014237. The reversal of 515014223 is 322410515.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-515014223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (515014723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 257507111 + 257507112.

It is an arithmetic number, because the mean of its divisors is an integer number (257507112).

Almost surely, 2^515014223 is an apocalyptic number.

515014223 is a deficient number, since it is larger than the sum of its proper divisors (1).

515014223 is an equidigital number, since it uses as much as digits as its factorization.

515014223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 515014223 is about 22693.9248037883. The cubic root of 515014223 is about 801.5668370860.

Adding to 515014223 its reverse (322410515), we get a palindrome (837424738).

The spelling of 515014223 in words is "five hundred fifteen million, fourteen thousand, two hundred twenty-three".