513454812 has 96 divisors (see below), whose sum is σ = 1329914880. Its totient is φ = 153204480.

The previous prime is 513454793. The next prime is 513454817. The reversal of 513454812 is 218454315.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513454817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 751423 + ... + 752105.

It is an arithmetic number, because the mean of its divisors is an integer number (13853280).

Almost surely, 2^513454812 is an apocalyptic number.

513454812 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 513454812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (664957440).

513454812 is an abundant number, since it is smaller than the sum of its proper divisors (816460068).

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

513454812 is a wasteful number, since it uses less digits than its factorization.

513454812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843 (or 841 counting only the distinct ones).

The product of its digits is 19200, while the sum is 33.

The square root of 513454812 is about 22659.5413016239. The cubic root of 513454812 is about 800.7569980498.

The spelling of 513454812 in words is "five hundred thirteen million, four hundred fifty-four thousand, eight hundred twelve".