513223156 has 6 divisors (see below), whose sum is σ = 898140530. Its totient is φ = 256611576.

The previous prime is 513223153. The next prime is 513223159. The reversal of 513223156 is 651322315.

It is an interprime number because it is at equal distance from previous prime (513223153) and next prime (513223159).

It can be written as a sum of positive squares in only one way, i.e., 321843600 + 191379556 = 17940^2 + 13834^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513223153) 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 as a sum of consecutive naturals, namely, 64152891 + ... + 64152898.

Almost surely, 2^513223156 is an apocalyptic number.

It is an amenable number.

513223156 is a deficient number, since it is larger than the sum of its proper divisors (384917374).

513223156 is a wasteful number, since it uses less digits than its factorization.

513223156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128305793 (or 128305791 counting only the distinct ones).

The product of its digits is 5400, while the sum is 28.

The square root of 513223156 is about 22654.4290592370. The cubic root of 513223156 is about 800.6365537814.

The spelling of 513223156 in words is "five hundred thirteen million, two hundred twenty-three thousand, one hundred fifty-six".