513204145 has 16 divisors (see below), whose sum is σ = 625224960. Its totient is φ = 404337024.

The previous prime is 513204137. The next prime is 513204149. The reversal of 513204145 is 541402315.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 513204145 - 2³ = 513204137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (513204149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179094 + ... + 181936.

It is an arithmetic number, because the mean of its divisors is an integer number (39076560).

Almost surely, 2^513204145 is an apocalyptic number.

It is an amenable number.

513204145 is a deficient number, since it is larger than the sum of its proper divisors (112020815).

513204145 is a wasteful number, since it uses less digits than its factorization.

513204145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3384.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 513204145 is about 22654.0094685246. The cubic root of 513204145 is about 800.6266678353.

The spelling of 513204145 in words is "five hundred thirteen million, two hundred four thousand, one hundred forty-five".