515120201 has 4 divisors (see below), whose sum is σ = 520121472. Its totient is φ = 510118932.

The previous prime is 515120143. The next prime is 515120317. The reversal of 515120201 is 102021515.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 515120201 - 2¹⁰ = 515119177 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 515120201.

It is not an unprimeable number, because it can be changed into a prime (515120101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2500481 + ... + 2500686.

It is an arithmetic number, because the mean of its divisors is an integer number (130030368).

Almost surely, 2^515120201 is an apocalyptic number.

It is an amenable number.

515120201 is a deficient number, since it is larger than the sum of its proper divisors (5001271).

515120201 is a wasteful number, since it uses less digits than its factorization.

515120201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5001270.

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 515120201 is about 22696.2596257621. The cubic root of 515120201 is about 801.6218146124.

Adding to 515120201 its reverse (102021515), we get a palindrome (617141716).

It can be divided in two parts, 5151 and 20201, that added together give a palindrome (25352).

The spelling of 515120201 in words is "five hundred fifteen million, one hundred twenty thousand, two hundred one".