512140155531 has 8 divisors (see below), whose sum is σ = 682856852544. Its totient is φ = 341425114440.

The previous prime is 512140155503. The next prime is 512140155539. The reversal of 512140155531 is 135551041215.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 512140155531 - 2¹⁰ = 512140154507 is a prime.

It is a super-2 number, since 2×512140155531² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 512140155492 and 512140155501.

It is not an unprimeable number, because it can be changed into a prime (512140155539) 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, 944676 + ... + 1384446.

It is an arithmetic number, because the mean of its divisors is an integer number (85357106568).

Almost surely, 2^512140155531 is an apocalyptic number.

512140155531 is a deficient number, since it is larger than the sum of its proper divisors (170716697013).

512140155531 is a wasteful number, since it uses less digits than its factorization.

512140155531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827961.

The product of its (nonzero) digits is 15000, while the sum is 33.

Adding to 512140155531 its reverse (135551041215), we get a palindrome (647691196746).

The spelling of 512140155531 in words is "five hundred twelve billion, one hundred forty million, one hundred fifty-five thousand, five hundred thirty-one".