6542131 has 2 divisors, whose sum is σ = 6542132. Its totient is φ = 6542130.

The previous prime is 6542119. The next prime is 6542141. The reversal of 6542131 is 1312456.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6542131 - 2¹³ = 6533939 is a prime.

It is a super-2 number, since 2×6542131² = 85598956042322, which contains 22 as substring.

6542131 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (6542101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3271065 + 3271066.

It is an arithmetic number, because the mean of its divisors is an integer number (3271066).

Almost surely, 2^6542131 is an apocalyptic number.

6542131 is a deficient number, since it is larger than the sum of its proper divisors (1).

6542131 is an equidigital number, since it uses as much as digits as its factorization.

6542131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 720, while the sum is 22.

The square root of 6542131 is about 2557.7589800448. The cubic root of 6542131 is about 187.0279062703.

Adding to 6542131 its reverse (1312456), we get a palindrome (7854587).

The spelling of 6542131 in words is "six million, five hundred forty-two thousand, one hundred thirty-one".