105251269 has 4 divisors (see below), whose sum is σ = 107237196. Its totient is φ = 103265344.

The previous prime is 105251227. The next prime is 105251281. The reversal of 105251269 is 962152501.

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 30636225 + 74615044 = 5535^2 + 8638^2 .

It is a cyclic number.

It is not a de Polignac number, because 105251269 - 2¹⁵ = 105218501 is a prime.

It is a super-2 number, since 2×105251269² = 22155659252220722, 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 105251269.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105251669) 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, 992884 + ... + 992989.

It is an arithmetic number, because the mean of its divisors is an integer number (26809299).

Almost surely, 2^105251269 is an apocalyptic number.

It is an amenable number.

105251269 is a deficient number, since it is larger than the sum of its proper divisors (1985927).

105251269 is an equidigital number, since it uses as much as digits as its factorization.

105251269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1985926.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 105251269 is about 10259.2041114309. The cubic root of 105251269 is about 472.1454189607.

The spelling of 105251269 in words is "one hundred five million, two hundred fifty-one thousand, two hundred sixty-nine".