106198549 has 2 divisors, whose sum is σ = 106198550. Its totient is φ = 106198548.

The previous prime is 106198537. The next prime is 106198553. The reversal of 106198549 is 945891601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76003524 + 30195025 = 8718^2 + 5495^2 .

It is an emirp because it is prime and its reverse (945891601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 106198549 - 2⁵ = 106198517 is a prime.

It is a super-2 number, since 2×106198549² = 22556263619410802, which contains 22 as substring.

It is equal to p_6097498 and since 106198549 and 6097498 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (106198559) 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, 53099274 + 53099275.

It is an arithmetic number, because the mean of its divisors is an integer number (53099275).

Almost surely, 2^106198549 is an apocalyptic number.

It is an amenable number.

106198549 is a deficient number, since it is larger than the sum of its proper divisors (1).

106198549 is an equidigital number, since it uses as much as digits as its factorization.

106198549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 43.

The square root of 106198549 is about 10305.2680217450. The cubic root of 106198549 is about 473.5576546444.

The spelling of 106198549 in words is "one hundred six million, one hundred ninety-eight thousand, five hundred forty-nine".