513401403 has 8 divisors (see below), whose sum is σ = 689130000. Its totient is φ = 339970208.

The previous prime is 513401393. The next prime is 513401419. The reversal of 513401403 is 304104315.

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

It is a cyclic number.

It is not a de Polignac number, because 513401403 - 2⁴ = 513401387 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 513401403.

It is not an unprimeable number, because it can be changed into a prime (513406403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 573828 + ... + 574721.

It is an arithmetic number, because the mean of its divisors is an integer number (86141250).

Almost surely, 2^513401403 is an apocalyptic number.

513401403 is a deficient number, since it is larger than the sum of its proper divisors (175728597).

513401403 is a wasteful number, since it uses less digits than its factorization.

513401403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1148701.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 513401403 is about 22658.3627607998. The cubic root of 513401403 is about 800.7292324689.

Adding to 513401403 its reverse (304104315), we get a palindrome (817505718).

The spelling of 513401403 in words is "five hundred thirteen million, four hundred one thousand, four hundred three".