105526231561 has 4 divisors (see below), whose sum is σ = 105527187472. Its totient is φ = 105525275652.

The previous prime is 105526231549. The next prime is 105526231571. The reversal of 105526231561 is 165132625501.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 105526231561 - 2¹⁵ = 105526198793 is a prime.

It is a super-2 number, since 2×105526231561² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 105526231561.

It is not an unprimeable number, because it can be changed into a prime (105526231571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 286911 + ... + 541636.

It is an arithmetic number, because the mean of its divisors is an integer number (26381796868).

Almost surely, 2^105526231561 is an apocalyptic number.

It is an amenable number.

105526231561 is a deficient number, since it is larger than the sum of its proper divisors (955911).

105526231561 is an equidigital number, since it uses as much as digits as its factorization.

105526231561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 955910.

The product of its (nonzero) digits is 54000, while the sum is 37.

The spelling of 105526231561 in words is "one hundred five billion, five hundred twenty-six million, two hundred thirty-one thousand, five hundred sixty-one".