513297369 has 48 divisors (see below), whose sum is σ = 844945920. Its totient is φ = 297665280.

The previous prime is 513297359. The next prime is 513297377. The reversal of 513297369 is 963792315.

513297369 is a `hidden beast` number, since 513 + 2 + 9 + 73 + 69 = 666.

It is not a de Polignac number, because 513297369 - 2⁴ = 513297353 is a prime.

It is a super-2 number, since 2×513297369² = 526948378044644322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (513297319) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 517464 + ... + 518454.

It is an arithmetic number, because the mean of its divisors is an integer number (17603040).

Almost surely, 2^513297369 is an apocalyptic number.

It is an amenable number.

513297369 is a deficient number, since it is larger than the sum of its proper divisors (331648551).

513297369 is a wasteful number, since it uses less digits than its factorization.

513297369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262 (or 1259 counting only the distinct ones).

The product of its digits is 306180, while the sum is 45.

The square root of 513297369 is about 22656.0669358121. The cubic root of 513297369 is about 800.6751430878.

The spelling of 513297369 in words is "five hundred thirteen million, two hundred ninety-seven thousand, three hundred sixty-nine".