105554857 has 2 divisors, whose sum is σ = 105554858. Its totient is φ = 105554856.

The previous prime is 105554849. The next prime is 105554863. The reversal of 105554857 is 758455501.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90839961 + 14714896 = 9531^2 + 3836^2 .

It is an emirp because it is prime and its reverse (758455501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 105554857 - 2³ = 105554849 is a prime.

It is a super-2 number, since 2×105554857² = 22283655672580898, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (105554807) 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, 52777428 + 52777429.

It is an arithmetic number, because the mean of its divisors is an integer number (52777429).

Almost surely, 2^105554857 is an apocalyptic number.

It is an amenable number.

105554857 is a deficient number, since it is larger than the sum of its proper divisors (1).

105554857 is an equidigital number, since it uses as much as digits as its factorization.

105554857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 140000, while the sum is 40.

The square root of 105554857 is about 10273.9893420229. The cubic root of 105554857 is about 472.5989371313.

The spelling of 105554857 in words is "one hundred five million, five hundred fifty-four thousand, eight hundred fifty-seven".