513533434 has 16 divisors (see below), whose sum is σ = 809522208. Its totient is φ = 244015632.

The previous prime is 513533431. The next prime is 513533437. The reversal of 513533434 is 434335315.

It is an interprime number because it is at equal distance from previous prime (513533431) and next prime (513533437).

It is a junction number, because it is equal to n+sod(n) for n = 513533396 and 513533405.

It is not an unprimeable number, because it can be changed into a prime (513533431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77512 + ... + 83875.

It is an arithmetic number, because the mean of its divisors is an integer number (50595138).

Almost surely, 2^513533434 is an apocalyptic number.

513533434 is a deficient number, since it is larger than the sum of its proper divisors (295988774).

513533434 is a wasteful number, since it uses less digits than its factorization.

513533434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161469.

The product of its digits is 32400, while the sum is 31.

The square root of 513533434 is about 22661.2760893997. The cubic root of 513533434 is about 800.7978675364.

Adding to 513533434 its reverse (434335315), we get a palindrome (947868749).

The spelling of 513533434 in words is "five hundred thirteen million, five hundred thirty-three thousand, four hundred thirty-four".