517121007 has 8 divisors (see below), whose sum is σ = 742532784. Its totient is φ = 318228288.

The previous prime is 517120999. The next prime is 517121021. The reversal of 517121007 is 700121715.

It is a happy number.

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

It is not a de Polignac number, because 517121007 - 2³ = 517120999 is a prime.

It is a super-3 number, since 3×517121007³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (517121057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6629718 + ... + 6629795.

It is an arithmetic number, because the mean of its divisors is an integer number (92816598).

Almost surely, 2^517121007 is an apocalyptic number.

517121007 is a deficient number, since it is larger than the sum of its proper divisors (225411777).

517121007 is a wasteful number, since it uses less digits than its factorization.

517121007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13259529.

The product of its (nonzero) digits is 490, while the sum is 24.

The square root of 517121007 is about 22740.2947870075. The cubic root of 517121007 is about 802.6583478449.

The spelling of 517121007 in words is "five hundred seventeen million, one hundred twenty-one thousand, seven".