105245322521 has 8 divisors (see below), whose sum is σ = 106568607744. Its totient is φ = 103930082080.

The previous prime is 105245322473. The next prime is 105245322569. The reversal of 105245322521 is 125223542501.

It is an interprime number because it is at equal distance from previous prime (105245322473) and next prime (105245322569).

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 105245322521 - 2³⁴ = 88065453337 is a prime.

It is a super-2 number, since 2×105245322521² (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 (105245322571) 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, 1984865 + ... + 2037198.

It is an arithmetic number, because the mean of its divisors is an integer number (13321075968).

Almost surely, 2^105245322521 is an apocalyptic number.

It is an amenable number.

105245322521 is a deficient number, since it is larger than the sum of its proper divisors (1323285223).

105245322521 is a wasteful number, since it uses less digits than its factorization.

105245322521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4022391.

The product of its (nonzero) digits is 24000, while the sum is 32.

The spelling of 105245322521 in words is "one hundred five billion, two hundred forty-five million, three hundred twenty-two thousand, five hundred twenty-one".