515140412 has 6 divisors (see below), whose sum is σ = 901495728. Its totient is φ = 257570204.

The previous prime is 515140411. The next prime is 515140433. The reversal of 515140412 is 214041515.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515140411) 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 as a sum of consecutive naturals, namely, 64392548 + ... + 64392555.

It is an arithmetic number, because the mean of its divisors is an integer number (150249288).

Almost surely, 2^515140412 is an apocalyptic number.

It is an amenable number.

515140412 is a deficient number, since it is larger than the sum of its proper divisors (386355316).

515140412 is a wasteful number, since it uses less digits than its factorization.

515140412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128785107 (or 128785105 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 515140412 is about 22696.7048709719. The cubic root of 515140412 is about 801.6322984869.

Adding to 515140412 its reverse (214041515), we get a palindrome (729181927).

The spelling of 515140412 in words is "five hundred fifteen million, one hundred forty thousand, four hundred twelve".