105304145545 has 12 divisors (see below), whose sum is σ = 129110809284. Its totient is φ = 82450896800.

The previous prime is 105304145537. The next prime is 105304145581. The reversal of 105304145545 is 545541403501.

It can be written as a sum of positive squares in 2 ways, for example, as 73187563024 + 32116582521 = 270532^2 + 179211^2 .

It is not a de Polignac number, because 105304145545 - 2³ = 105304145537 is a prime.

It is a super-2 number, since 2×105304145545² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4756006 + ... + 4778095.

It is an arithmetic number, because the mean of its divisors is an integer number (10759234107).

Almost surely, 2^105304145545 is an apocalyptic number.

It is an amenable number.

105304145545 is a deficient number, since it is larger than the sum of its proper divisors (23806663739).

105304145545 is an frugal number, since it uses more digits than its factorization.

105304145545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9534200 (or 9534153 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 37.

The spelling of 105304145545 in words is "one hundred five billion, three hundred four million, one hundred forty-five thousand, five hundred forty-five".