105423063547 has 4 divisors (see below), whose sum is σ = 105459914736. Its totient is φ = 105386212360.

The previous prime is 105423063541. The next prime is 105423063589. The reversal of 105423063547 is 745360324501.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 105423063547 - 2³ = 105423063539 is a prime.

It is a super-2 number, since 2×105423063547² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105423063541) 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, 18421303 + ... + 18427024.

It is an arithmetic number, because the mean of its divisors is an integer number (26364978684).

Almost surely, 2^105423063547 is an apocalyptic number.

105423063547 is a deficient number, since it is larger than the sum of its proper divisors (36851189).

105423063547 is an equidigital number, since it uses as much as digits as its factorization.

105423063547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36851188.

The product of its (nonzero) digits is 302400, while the sum is 40.

The spelling of 105423063547 in words is "one hundred five billion, four hundred twenty-three million, sixty-three thousand, five hundred forty-seven".