106531625236391 has 2 divisors, whose sum is σ = 106531625236392. Its totient is φ = 106531625236390.

The previous prime is 106531625236363. The next prime is 106531625236433. The reversal of 106531625236391 is 193632526135601.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-106531625236391 is a prime.

It is a super-2 number, since 2×106531625236391² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (106531625233391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53265812618195 + 53265812618196.

It is an arithmetic number, because the mean of its divisors is an integer number (53265812618196).

Almost surely, 2^{106531625236391} is an apocalyptic number.

106531625236391 is a deficient number, since it is larger than the sum of its proper divisors (1).

106531625236391 is an equidigital number, since it uses as much as digits as its factorization.

106531625236391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5248800, while the sum is 53.

The spelling of 106531625236391 in words is "one hundred six trillion, five hundred thirty-one billion, six hundred twenty-five million, two hundred thirty-six thousand, three hundred ninety-one".