513000161444 has 24 divisors (see below), whose sum is σ = 919799532288. Its totient is φ = 250235392640.

The previous prime is 513000161413. The next prime is 513000161449. The reversal of 513000161444 is 444161000315.

It is not an unprimeable number, because it can be changed into a prime (513000161449) 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 7 ways as a sum of consecutive naturals, for example, 4328549 + ... + 4445484.

It is an arithmetic number, because the mean of its divisors is an integer number (38324980512).

Almost surely, 2^513000161444 is an apocalyptic number.

It is an amenable number.

513000161444 is a deficient number, since it is larger than the sum of its proper divisors (406799370844).

513000161444 is a wasteful number, since it uses less digits than its factorization.

513000161444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8774395 (or 8774393 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 513000161444 its reverse (444161000315), we get a palindrome (957161161759).

The spelling of 513000161444 in words is "five hundred thirteen billion, one hundred sixty-one thousand, four hundred forty-four".