515315540245 has 8 divisors (see below), whose sum is σ = 674594889120. Its totient is φ = 374774938320.

The previous prime is 515315540231. The next prime is 515315540251. The reversal of 515315540245 is 542045513515.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 515315540245 - 2⁹ = 515315539733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 515315540198 and 515315540207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4684686675 + ... + 4684686784.

It is an arithmetic number, because the mean of its divisors is an integer number (84324361140).

Almost surely, 2^515315540245 is an apocalyptic number.

515315540245 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

515315540245 is a deficient number, since it is larger than the sum of its proper divisors (159279348875).

515315540245 is a wasteful number, since it uses less digits than its factorization.

515315540245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9369373475.

The product of its (nonzero) digits is 300000, while the sum is 40.

The spelling of 515315540245 in words is "five hundred fifteen billion, three hundred fifteen million, five hundred forty thousand, two hundred forty-five".