105354660247 has 4 divisors (see below), whose sum is σ = 105355403280. Its totient is φ = 105353917216.

The previous prime is 105354660227. The next prime is 105354660253. The reversal of 105354660247 is 742066453501.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 742066453501 = 17 ⋅43650967853.

It is a cyclic number.

It is not a de Polignac number, because 105354660247 - 2¹⁵ = 105354627479 is a prime.

It is a super-2 number, since 2×105354660247² (a number of 23 digits) 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 (105354660217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85363 + ... + 466900.

It is an arithmetic number, because the mean of its divisors is an integer number (26338850820).

Almost surely, 2^105354660247 is an apocalyptic number.

105354660247 is a deficient number, since it is larger than the sum of its proper divisors (743033).

105354660247 is an equidigital number, since it uses as much as digits as its factorization.

105354660247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743032.

The product of its (nonzero) digits is 604800, while the sum is 43.

The spelling of 105354660247 in words is "one hundred five billion, three hundred fifty-four million, six hundred sixty thousand, two hundred forty-seven".