515132263 has 4 divisors (see below), whose sum is σ = 515361168. Its totient is φ = 514903360.

The previous prime is 515132243. The next prime is 515132269. The reversal of 515132263 is 362231515.

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-515132263 is a prime.

It is a super-2 number, since 2×515132263² = 530722496767002338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515132269) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 111043 + ... + 115588.

It is an arithmetic number, because the mean of its divisors is an integer number (128840292).

Almost surely, 2^515132263 is an apocalyptic number.

515132263 is a deficient number, since it is larger than the sum of its proper divisors (228905).

515132263 is a wasteful number, since it uses less digits than its factorization.

515132263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228904.

The product of its digits is 5400, while the sum is 28.

The square root of 515132263 is about 22696.5253508109. The cubic root of 515132263 is about 801.6280714607.

Adding to 515132263 its reverse (362231515), we get a palindrome (877363778).

The spelling of 515132263 in words is "five hundred fifteen million, one hundred thirty-two thousand, two hundred sixty-three".