6142531531 has 2 divisors, whose sum is σ = 6142531532. Its totient is φ = 6142531530.

The previous prime is 6142531529. The next prime is 6142531543. The reversal of 6142531531 is 1351352416.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6142531531 - 2¹ = 6142531529 is a prime.

It is a super-2 number, since 2×6142531531² = 75461387218658407922, which contains 22 as substring.

Together with 6142531529, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 6142531493 and 6142531502.

It is not a weakly prime, because it can be changed into another prime (6142531331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3071265765 + 3071265766.

It is an arithmetic number, because the mean of its divisors is an integer number (3071265766).

Almost surely, 2^6142531531 is an apocalyptic number.

6142531531 is a deficient number, since it is larger than the sum of its proper divisors (1).

6142531531 is an equidigital number, since it uses as much as digits as its factorization.

6142531531 is an odious number, because the sum of its binary digits is odd.

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

The square root of 6142531531 is about 78374.3040224282. The cubic root of 6142531531 is about 1831.3968582833.

Adding to 6142531531 its reverse (1351352416), we get a palindrome (7493883947).

The spelling of 6142531531 in words is "six billion, one hundred forty-two million, five hundred thirty-one thousand, five hundred thirty-one".