105802261 has 4 divisors (see below), whose sum is σ = 105911532. Its totient is φ = 105692992.

The previous prime is 105802259. The next prime is 105802289. The reversal of 105802261 is 162208501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 43692100 + 62110161 = 6610^2 + 7881^2 .

It is a cyclic number.

It is not a de Polignac number, because 105802261 - 2¹ = 105802259 is a prime.

It is a super-2 number, since 2×105802261² = 22388236865424242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105812261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53170 + ... + 55123.

It is an arithmetic number, because the mean of its divisors is an integer number (26477883).

Almost surely, 2^105802261 is an apocalyptic number.

It is an amenable number.

105802261 is a deficient number, since it is larger than the sum of its proper divisors (109271).

105802261 is an equidigital number, since it uses as much as digits as its factorization.

105802261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109270.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 105802261 is about 10286.0226035140. The cubic root of 105802261 is about 472.9678815832.

The spelling of 105802261 in words is "one hundred five million, eight hundred two thousand, two hundred sixty-one".