105345245521 has 8 divisors (see below), whose sum is σ = 105416524224. Its totient is φ = 105273996720.

The previous prime is 105345245477. The next prime is 105345245531. The reversal of 105345245521 is 125542543501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 105345245521 - 2⁹ = 105345245009 is a prime.

It is a super-2 number, since 2×105345245521² (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 (105345245531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17446915 + ... + 17452951.

It is an arithmetic number, because the mean of its divisors is an integer number (13177065528).

Almost surely, 2^105345245521 is an apocalyptic number.

It is an amenable number.

105345245521 is a deficient number, since it is larger than the sum of its proper divisors (71278703).

105345245521 is an equidigital number, since it uses as much as digits as its factorization.

105345245521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14951.

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

The spelling of 105345245521 in words is "one hundred five billion, three hundred forty-five million, two hundred forty-five thousand, five hundred twenty-one".