513612316 has 30 divisors (see below), whose sum is σ = 1048582360. Its totient is φ = 220115448.

The previous prime is 513612223. The next prime is 513612317. The reversal of 513612316 is 613216315.

It is a super-4 number, since 4×513612316⁴ (a number of 36 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513612317) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 17136 + ... + 36343.

Almost surely, 2^513612316 is an apocalyptic number.

It is an amenable number.

513612316 is an abundant number, since it is smaller than the sum of its proper divisors (534970044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

513612316 is an equidigital number, since it uses as much as digits as its factorization.

513612316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53511 (or 53488 counting only the distinct ones).

The product of its digits is 3240, while the sum is 28.

The square root of 513612316 is about 22663.0164806012. The cubic root of 513612316 is about 800.8388679848.

The spelling of 513612316 in words is "five hundred thirteen million, six hundred twelve thousand, three hundred sixteen".