105558149 has 4 divisors (see below), whose sum is σ = 108132780. Its totient is φ = 102983520.

The previous prime is 105558143. The next prime is 105558161. The reversal of 105558149 is 941855501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22420225 + 83137924 = 4735^2 + 9118^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105558149 is a prime.

It is a super-2 number, since 2×105558149² = 22285045640612402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105558143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1287254 + ... + 1287335.

It is an arithmetic number, because the mean of its divisors is an integer number (27033195).

Almost surely, 2^105558149 is an apocalyptic number.

It is an amenable number.

105558149 is a deficient number, since it is larger than the sum of its proper divisors (2574631).

105558149 is an equidigital number, since it uses as much as digits as its factorization.

105558149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2574630.

The product of its (nonzero) digits is 36000, while the sum is 38.

The square root of 105558149 is about 10274.1495511794. The cubic root of 105558149 is about 472.6038501518.

The spelling of 105558149 in words is "one hundred five million, five hundred fifty-eight thousand, one hundred forty-nine".