513011245 has 16 divisors (see below), whose sum is σ = 620933040. Its totient is φ = 406879744.

The previous prime is 513011231. The next prime is 513011249. The reversal of 513011245 is 542110315.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 263023524 + 249987721 = 16218^2 + 15811^2 .

It is a cyclic number.

It is not a de Polignac number, because 513011245 - 2⁷ = 513011117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513011249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 312567 + ... + 314203.

It is an arithmetic number, because the mean of its divisors is an integer number (38808315).

Almost surely, 2^513011245 is an apocalyptic number.

It is an amenable number.

513011245 is a deficient number, since it is larger than the sum of its proper divisors (107921795).

513011245 is a wasteful number, since it uses less digits than its factorization.

513011245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2144.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 513011245 is about 22649.7515438912. The cubic root of 513011245 is about 800.5263437311.

The spelling of 513011245 in words is "five hundred thirteen million, eleven thousand, two hundred forty-five".