105240569 has 4 divisors (see below), whose sum is σ = 120274944. Its totient is φ = 90206196.

The previous prime is 105240547. The next prime is 105240593. The reversal of 105240569 is 965042501.

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 an emirpimes, since its reverse is a distinct semiprime: 965042501 = 13759 ⋅70139.

It is a cyclic number.

It is not a de Polignac number, because 105240569 - 2⁸ = 105240313 is a prime.

It is a super-2 number, since 2×105240569² = 22151154726887522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105240169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7517177 + ... + 7517190.

It is an arithmetic number, because the mean of its divisors is an integer number (30068736).

Almost surely, 2^105240569 is an apocalyptic number.

It is an amenable number.

105240569 is a deficient number, since it is larger than the sum of its proper divisors (15034375).

105240569 is an equidigital number, since it uses as much as digits as its factorization.

105240569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15034374.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 105240569 is about 10258.6826152289. The cubic root of 105240569 is about 472.1294187508.

The spelling of 105240569 in words is "one hundred five million, two hundred forty thousand, five hundred sixty-nine".