513223141 has 4 divisors (see below), whose sum is σ = 513426412. Its totient is φ = 513019872.

The previous prime is 513223133. The next prime is 513223153. The reversal of 513223141 is 141322315.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 422097025 + 91126116 = 20545^2 + 9546^2 .

It is a cyclic number.

It is not a de Polignac number, because 513223141 - 2³ = 513223133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513223181) 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 3 ways as a sum of consecutive naturals, for example, 97800 + ... + 102913.

It is an arithmetic number, because the mean of its divisors is an integer number (128356603).

Almost surely, 2^513223141 is an apocalyptic number.

It is an amenable number.

513223141 is a deficient number, since it is larger than the sum of its proper divisors (203271).

513223141 is a wasteful number, since it uses less digits than its factorization.

513223141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203270.

The product of its digits is 720, while the sum is 22.

The square root of 513223141 is about 22654.4287281759. The cubic root of 513223141 is about 800.6365459813.

Adding to 513223141 its reverse (141322315), we get a palindrome (654545456).

It can be divided in two parts, 51322314 and 1, that added together give a palindrome (51322315).

The spelling of 513223141 in words is "five hundred thirteen million, two hundred twenty-three thousand, one hundred forty-one".