105450543215 has 4 divisors (see below), whose sum is σ = 126540651864. Its totient is φ = 84360434568.

The previous prime is 105450543199. The next prime is 105450543251. The reversal of 105450543215 is 512345054501.

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 105450543215 - 2⁴ = 105450543199 is a prime.

It is a super-2 number, since 2×105450543215² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10545054317 + ... + 10545054326.

It is an arithmetic number, because the mean of its divisors is an integer number (31635162966).

Almost surely, 2^105450543215 is an apocalyptic number.

105450543215 is a deficient number, since it is larger than the sum of its proper divisors (21090108649).

105450543215 is an equidigital number, since it uses as much as digits as its factorization.

105450543215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21090108648.

The product of its (nonzero) digits is 60000, while the sum is 35.

Adding to 105450543215 its reverse (512345054501), we get a palindrome (617795597716).

The spelling of 105450543215 in words is "one hundred five billion, four hundred fifty million, five hundred forty-three thousand, two hundred fifteen".