105263261 has 4 divisors (see below), whose sum is σ = 108108252. Its totient is φ = 102418272.

The previous prime is 105263233. The next prime is 105263267. The reversal of 105263261 is 162362501.

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 37283236 + 67980025 = 6106^2 + 8245^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105263261 is a prime.

It is a super-2 number, since 2×105263261² = 22160708232708242, which 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 105263261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105263267) 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, 1422440 + ... + 1422513.

It is an arithmetic number, because the mean of its divisors is an integer number (27027063).

Almost surely, 2^105263261 is an apocalyptic number.

It is an amenable number.

105263261 is a deficient number, since it is larger than the sum of its proper divisors (2844991).

105263261 is an equidigital number, since it uses as much as digits as its factorization.

105263261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2844990.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 105263261 is about 10259.7885455793. The cubic root of 105263261 is about 472.1633498699.

The spelling of 105263261 in words is "one hundred five million, two hundred sixty-three thousand, two hundred sixty-one".