515315045 has 32 divisors (see below), whose sum is σ = 719953920. Its totient is φ = 346800960.

The previous prime is 515315041. The next prime is 515315057. The reversal of 515315045 is 540513515.

It is not a de Polignac number, because 515315045 - 2² = 515315041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 515314999 and 515315017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515315041) 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 31 ways as a sum of consecutive naturals, for example, 519500 + ... + 520490.

It is an arithmetic number, because the mean of its divisors is an integer number (22498560).

Almost surely, 2^515315045 is an apocalyptic number.

It is an amenable number.

515315045 is a deficient number, since it is larger than the sum of its proper divisors (204638875).

515315045 is a wasteful number, since it uses less digits than its factorization.

515315045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1265.

The product of its (nonzero) digits is 7500, while the sum is 29.

The square root of 515315045 is about 22700.5516452795. The cubic root of 515315045 is about 801.7228729101.

The spelling of 515315045 in words is "five hundred fifteen million, three hundred fifteen thousand, forty-five".