515140463 has 2 divisors, whose sum is σ = 515140464. Its totient is φ = 515140462.

The previous prime is 515140459. The next prime is 515140469. The reversal of 515140463 is 364041515.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 515140463 - 2² = 515140459 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (515140469) 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, 257570231 + 257570232.

It is an arithmetic number, because the mean of its divisors is an integer number (257570232).

Almost surely, 2^515140463 is an apocalyptic number.

515140463 is a deficient number, since it is larger than the sum of its proper divisors (1).

515140463 is an equidigital number, since it uses as much as digits as its factorization.

515140463 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 515140463 is about 22696.7059944830. The cubic root of 515140463 is about 801.6323249413.

Adding to 515140463 its reverse (364041515), we get a palindrome (879181978).

The spelling of 515140463 in words is "five hundred fifteen million, one hundred forty thousand, four hundred sixty-three".