515132242 has 16 divisors (see below), whose sum is σ = 807071040. Its totient is φ = 246130192.

The previous prime is 515132221. The next prime is 515132243. The reversal of 515132242 is 242231515.

It is a super-2 number, since 2×515132242² = 530722453495893128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (515132243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48684 + ... + 58312.

It is an arithmetic number, because the mean of its divisors is an integer number (50441940).

Almost surely, 2^515132242 is an apocalyptic number.

515132242 is a deficient number, since it is larger than the sum of its proper divisors (291938798).

515132242 is a wasteful number, since it uses less digits than its factorization.

515132242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10817.

The product of its digits is 2400, while the sum is 25.

The square root of 515132242 is about 22696.5248881850. The cubic root of 515132242 is about 801.6280605676.

Adding to 515132242 its reverse (242231515), we get a palindrome (757363757).

The spelling of 515132242 in words is "five hundred fifteen million, one hundred thirty-two thousand, two hundred forty-two".