105278497 has 8 divisors (see below), whose sum is σ = 110696040. Its totient is φ = 99980160.

The previous prime is 105278473. The next prime is 105278513. The reversal of 105278497 is 794872501.

It can be written as a sum of positive squares in 4 ways, for example, as 8433216 + 96845281 = 2904^2 + 9841^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 105278497 - 2¹¹ = 105276449 is a prime.

It is a super-2 number, since 2×105278497² = 22167123861158018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105278417) 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 7 ways as a sum of consecutive naturals, for example, 27988 + ... + 31525.

It is an arithmetic number, because the mean of its divisors is an integer number (13837005).

Almost surely, 2^105278497 is an apocalyptic number.

It is an amenable number.

105278497 is a deficient number, since it is larger than the sum of its proper divisors (5417543).

105278497 is an equidigital number, since it uses as much as digits as its factorization.

105278497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59603.

The product of its (nonzero) digits is 141120, while the sum is 43.

The square root of 105278497 is about 10260.5310291427. The cubic root of 105278497 is about 472.1861293711.

The spelling of 105278497 in words is "one hundred five million, two hundred seventy-eight thousand, four hundred ninety-seven".