515132134231 has 16 divisors (see below), whose sum is σ = 606308941728. Its totient is φ = 431479612800.

The previous prime is 515132134211. The next prime is 515132134303. The reversal of 515132134231 is 132431231515.

It is a cyclic number.

It is not a de Polignac number, because 515132134231 - 2⁷ = 515132134103 is a prime.

It is a super-2 number, since 2×515132134231² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 515132134193 and 515132134202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515132134211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3251956 + ... + 3406681.

It is an arithmetic number, because the mean of its divisors is an integer number (37894308858).

Almost surely, 2^515132134231 is an apocalyptic number.

515132134231 is a deficient number, since it is larger than the sum of its proper divisors (91176807497).

515132134231 is a wasteful number, since it uses less digits than its factorization.

515132134231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6659202.

The product of its digits is 10800, while the sum is 31.

Adding to 515132134231 its reverse (132431231515), we get a palindrome (647563365746).

The spelling of 515132134231 in words is "five hundred fifteen billion, one hundred thirty-two million, one hundred thirty-four thousand, two hundred thirty-one".