519954345 has 12 divisors (see below), whose sum is σ = 901254276. Its totient is φ = 277308960.

The previous prime is 519954343. The next prime is 519954349. The reversal of 519954345 is 543459915.

519954345 is a `hidden beast` number, since 519 + 95 + 4 + 3 + 45 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 367258896 + 152695449 = 19164^2 + 12357^2 .

It is not a de Polignac number, because 519954345 - 2¹ = 519954343 is a prime.

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: 11554541 = 519954345 / (5 + 1 + 9 + 9 + 5 + 4 + 3 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 519954345.

It is not an unprimeable number, because it can be changed into a prime (519954341) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5777226 + ... + 5777315.

It is an arithmetic number, because the mean of its divisors is an integer number (75104523).

Almost surely, 2^519954345 is an apocalyptic number.

It is an amenable number.

519954345 is a deficient number, since it is larger than the sum of its proper divisors (381299931).

519954345 is a wasteful number, since it uses less digits than its factorization.

519954345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11554552 (or 11554549 counting only the distinct ones).

The product of its digits is 486000, while the sum is 45.

The square root of 519954345 is about 22802.5074279124. The cubic root of 519954345 is about 804.1216168964.

The spelling of 519954345 in words is "five hundred nineteen million, nine hundred fifty-four thousand, three hundred forty-five".