513002121 has 8 divisors (see below), whose sum is σ = 684926400. Its totient is φ = 341539632.

The previous prime is 513002101. The next prime is 513002153. The reversal of 513002121 is 121200315.

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

It is not a de Polignac number, because 513002121 - 2¹⁷ = 512871049 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 513002121.

It is not an unprimeable number, because it can be changed into a prime (513002101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112846 + ... + 117303.

It is an arithmetic number, because the mean of its divisors is an integer number (85615800).

Almost surely, 2^513002121 is an apocalyptic number.

It is an amenable number.

513002121 is a deficient number, since it is larger than the sum of its proper divisors (171924279).

513002121 is a wasteful number, since it uses less digits than its factorization.

513002121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230895.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 513002121 is about 22649.5501279827. The cubic root of 513002121 is about 800.5215978665.

Adding to 513002121 its reverse (121200315), we get a palindrome (634202436).

The spelling of 513002121 in words is "five hundred thirteen million, two thousand, one hundred twenty-one".