105697249 has 4 divisors (see below), whose sum is σ = 120796864. Its totient is φ = 90597636.

The previous prime is 105697243. The next prime is 105697253. The reversal of 105697249 is 942796501.

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: 942796501 = 223 ⋅4227787.

It is a cyclic number.

It is not a de Polignac number, because 105697249 - 2⁹ = 105696737 is a prime.

It is a super-2 number, since 2×105697249² = 22343816892336002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105697243) 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, 7549797 + ... + 7549810.

It is an arithmetic number, because the mean of its divisors is an integer number (30199216).

Almost surely, 2^105697249 is an apocalyptic number.

It is an amenable number.

105697249 is a deficient number, since it is larger than the sum of its proper divisors (15099615).

105697249 is an equidigital number, since it uses as much as digits as its factorization.

105697249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15099614.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 105697249 is about 10280.9167392796. The cubic root of 105697249 is about 472.8113513923.

The spelling of 105697249 in words is "one hundred five million, six hundred ninety-seven thousand, two hundred forty-nine".