515240983 has 2 divisors, whose sum is σ = 515240984. Its totient is φ = 515240982.

The previous prime is 515240969. The next prime is 515241029. The reversal of 515240983 is 389042515.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 515240983 - 2⁵ = 515240951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (515240183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 257620491 + 257620492.

It is an arithmetic number, because the mean of its divisors is an integer number (257620492).

Almost surely, 2^515240983 is an apocalyptic number.

515240983 is a deficient number, since it is larger than the sum of its proper divisors (1).

515240983 is an equidigital number, since it uses as much as digits as its factorization.

515240983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 515240983 is about 22698.9203047193. The cubic root of 515240983 is about 801.6844627215.

The spelling of 515240983 in words is "five hundred fifteen million, two hundred forty thousand, nine hundred eighty-three".