105024561 has 4 divisors (see below), whose sum is σ = 140032752. Its totient is φ = 70016372.

The previous prime is 105024529. The next prime is 105024581. The reversal of 105024561 is 165420501.

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: 165420501 = 3 ⋅55140167.

It is a cyclic number.

It is not a de Polignac number, because 105024561 - 2⁵ = 105024529 is a prime.

It is a super-3 number, since 3×105024561³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (105024581) 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, 17504091 + ... + 17504096.

It is an arithmetic number, because the mean of its divisors is an integer number (35008188).

Almost surely, 2^105024561 is an apocalyptic number.

It is an amenable number.

105024561 is a deficient number, since it is larger than the sum of its proper divisors (35008191).

105024561 is an equidigital number, since it uses as much as digits as its factorization.

105024561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35008190.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 105024561 is about 10248.1491499685. The cubic root of 105024561 is about 471.8061796978.

The spelling of 105024561 in words is "one hundred five million, twenty-four thousand, five hundred sixty-one".