106521347 has 2 divisors, whose sum is σ = 106521348. Its totient is φ = 106521346.

The previous prime is 106521343. The next prime is 106521461. The reversal of 106521347 is 743125601.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 106521347 - 2² = 106521343 is a prime.

It is a super-2 number, since 2×106521347² = 22693594733388818, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (106521343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53260673 + 53260674.

It is an arithmetic number, because the mean of its divisors is an integer number (53260674).

Almost surely, 2^106521347 is an apocalyptic number.

106521347 is a deficient number, since it is larger than the sum of its proper divisors (1).

106521347 is an equidigital number, since it uses as much as digits as its factorization.

106521347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 106521347 is about 10320.9179339824. The cubic root of 106521347 is about 474.0369733246.

Adding to 106521347 its reverse (743125601), we get a palindrome (849646948).

The spelling of 106521347 in words is "one hundred six million, five hundred twenty-one thousand, three hundred forty-seven".