513611434 has 24 divisors (see below), whose sum is σ = 898827300. Its totient is φ = 219473856.

The previous prime is 513611419. The next prime is 513611437. The reversal of 513611434 is 434116315.

It can be written as a sum of positive squares in 2 ways, for example, as 512796025 + 815409 = 22645^2 + 903^2 .

It is not an unprimeable number, because it can be changed into a prime (513611437) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26694 + ... + 41710.

Almost surely, 2^513611434 is an apocalyptic number.

513611434 is a deficient number, since it is larger than the sum of its proper divisors (385215866).

513611434 is a wasteful number, since it uses less digits than its factorization.

513611434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15382 (or 15375 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

The square root of 513611434 is about 22662.9970215768. The cubic root of 513611434 is about 800.8384095715.

Adding to 513611434 its reverse (434116315), we get a palindrome (947727749).

The spelling of 513611434 in words is "five hundred thirteen million, six hundred eleven thousand, four hundred thirty-four".