513361378 has 8 divisors (see below), whose sum is σ = 770994000. Its totient is φ = 256363380.

The previous prime is 513361363. The next prime is 513361379. The reversal of 513361378 is 873163315.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (513361379) 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, 156628 + ... + 159871.

It is an arithmetic number, because the mean of its divisors is an integer number (96374250).

Almost surely, 2^513361378 is an apocalyptic number.

513361378 is a deficient number, since it is larger than the sum of its proper divisors (257632622).

513361378 is a wasteful number, since it uses less digits than its factorization.

513361378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317312.

The product of its digits is 45360, while the sum is 37.

The square root of 513361378 is about 22657.4795156037. The cubic root of 513361378 is about 800.7084235266.

The spelling of 513361378 in words is "five hundred thirteen million, three hundred sixty-one thousand, three hundred seventy-eight".