513045454 has 4 divisors (see below), whose sum is σ = 769568184. Its totient is φ = 256522726.

The previous prime is 513045437. The next prime is 513045473. The reversal of 513045454 is 454540315.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×513045454² = 526431275740132232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 128261362 + ... + 128261365.

It is an arithmetic number, because the mean of its divisors is an integer number (192392046).

Almost surely, 2^513045454 is an apocalyptic number.

513045454 is a deficient number, since it is larger than the sum of its proper divisors (256522730).

513045454 is a wasteful number, since it uses less digits than its factorization.

513045454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256522729.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 513045454 is about 22650.5067051490. The cubic root of 513045454 is about 800.5441371013.

Adding to 513045454 its reverse (454540315), we get a palindrome (967585769).

The spelling of 513045454 in words is "five hundred thirteen million, forty-five thousand, four hundred fifty-four".