519387345 has 12 divisors (see below), whose sum is σ = 900271476. Its totient is φ = 277006560.

The previous prime is 519387263. The next prime is 519387371. The reversal of 519387345 is 543783915.

It can be written as a sum of positive squares in 2 ways, for example, as 219543489 + 299843856 = 14817^2 + 17316^2 .

It is not a de Polignac number, because 519387345 - 2¹⁰ = 519386321 is a prime.

It is a super-2 number, since 2×519387345² = 539526428292298050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 11541941 = 519387345 / (5 + 1 + 9 + 3 + 8 + 7 + 3 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 519387345.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 5770926 + ... + 5771015.

It is an arithmetic number, because the mean of its divisors is an integer number (75022623).

Almost surely, 2^519387345 is an apocalyptic number.

It is an amenable number.

519387345 is a deficient number, since it is larger than the sum of its proper divisors (380884131).

519387345 is a wasteful number, since it uses less digits than its factorization.

519387345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11541952 (or 11541949 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The square root of 519387345 is about 22790.0711933947. The cubic root of 519387345 is about 803.8292176427.

The spelling of 519387345 in words is "five hundred nineteen million, three hundred eighty-seven thousand, three hundred forty-five".