515342073 has 16 divisors (see below), whose sum is σ = 726548480. Its totient is φ = 324011664.

The previous prime is 515342059. The next prime is 515342119. The reversal of 515342073 is 370243515.

It is not a de Polignac number, because 515342073 - 2⁵ = 515342041 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 515342073.

It is not an unprimeable number, because it can be changed into a prime (515342033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7561 + ... + 32982.

It is an arithmetic number, because the mean of its divisors is an integer number (45409280).

Almost surely, 2^515342073 is an apocalyptic number.

It is an amenable number.

515342073 is a deficient number, since it is larger than the sum of its proper divisors (211206407).

515342073 is a wasteful number, since it uses less digits than its factorization.

515342073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40788.

The product of its (nonzero) digits is 12600, while the sum is 30.

The square root of 515342073 is about 22701.1469534030. The cubic root of 515342073 is about 801.7368893112.

Adding to 515342073 its reverse (370243515), we get a palindrome (885585588).

The spelling of 515342073 in words is "five hundred fifteen million, three hundred forty-two thousand, seventy-three".