105801370897 has 4 divisors (see below), whose sum is σ = 106162468020. Its totient is φ = 105440273776.

The previous prime is 105801370891. The next prime is 105801370949. The reversal of 105801370897 is 798073108501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 798073108501 = 37 ⋅21569543473.

It can be written as a sum of positive squares in 2 ways, for example, as 100158957441 + 5642413456 = 316479^2 + 75116^2 .

It is a cyclic number.

It is not a de Polignac number, because 105801370897 - 2³⁵ = 71441632529 is a prime.

It is a super-2 number, since 2×105801370897² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 105801370897.

It is not an unprimeable number, because it can be changed into a prime (105801370891) 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 in 3 ways as a sum of consecutive naturals, for example, 180548122 + ... + 180548707.

It is an arithmetic number, because the mean of its divisors is an integer number (26540617005).

Almost surely, 2^105801370897 is an apocalyptic number.

It is an amenable number.

105801370897 is a deficient number, since it is larger than the sum of its proper divisors (361097123).

105801370897 is an equidigital number, since it uses as much as digits as its factorization.

105801370897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361097122.

The product of its (nonzero) digits is 423360, while the sum is 49.

The spelling of 105801370897 in words is "one hundred five billion, eight hundred one million, three hundred seventy thousand, eight hundred ninety-seven".