105241421525 has 6 divisors (see below), whose sum is σ = 130499362722. Its totient is φ = 84193137200.

The previous prime is 105241421503. The next prime is 105241421543. The reversal of 105241421525 is 525124142501.

It can be written as a sum of positive squares in 3 ways, for example, as 2405117764 + 102836303761 = 49042^2 + 320681^2 .

It is not a de Polignac number, because 105241421525 - 2¹² = 105241417429 is a prime.

It is a super-2 number, since 2×105241421525² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 105241421491 and 105241421500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2104828406 + ... + 2104828455.

It is an arithmetic number, because the mean of its divisors is an integer number (21749893787).

Almost surely, 2^105241421525 is an apocalyptic number.

It is an amenable number.

105241421525 is a deficient number, since it is larger than the sum of its proper divisors (25257941197).

105241421525 is an equidigital number, since it uses as much as digits as its factorization.

105241421525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4209656871 (or 4209656866 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 32.

The spelling of 105241421525 in words is "one hundred five billion, two hundred forty-one million, four hundred twenty-one thousand, five hundred twenty-five".