106849661 has 2 divisors, whose sum is σ = 106849662. Its totient is φ = 106849660.

The previous prime is 106849637. The next prime is 106849669. The reversal of 106849661 is 166948601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106605625 + 244036 = 10325^2 + 494^2 .

It is an emirp because it is prime and its reverse (166948601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 106849661 - 2¹⁴ = 106833277 is a prime.

It is a super-2 number, since 2×106849661² = 22833700111629842, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (106849669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53424830 + 53424831.

It is an arithmetic number, because the mean of its divisors is an integer number (53424831).

Almost surely, 2^106849661 is an apocalyptic number.

It is an amenable number.

106849661 is a deficient number, since it is larger than the sum of its proper divisors (1).

106849661 is an equidigital number, since it uses as much as digits as its factorization.

106849661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 106849661 is about 10336.8109685725. The cubic root of 106849661 is about 474.5234903722.

The spelling of 106849661 in words is "one hundred six million, eight hundred forty-nine thousand, six hundred sixty-one".