105657243 has 8 divisors (see below), whose sum is σ = 140927808. Its totient is φ = 70412424.

The previous prime is 105657229. The next prime is 105657247. The reversal of 105657243 is 342756501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 105657243 - 2¹⁰ = 105656219 is a prime.

It is a super-2 number, since 2×105657243² = 22326905996722098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105657247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7380 + ... + 16302.

It is an arithmetic number, because the mean of its divisors is an integer number (17615976).

Almost surely, 2^105657243 is an apocalyptic number.

105657243 is a deficient number, since it is larger than the sum of its proper divisors (35270565).

105657243 is an equidigital number, since it uses as much as digits as its factorization.

105657243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12873.

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 105657243 is about 10278.9709115261. The cubic root of 105657243 is about 472.7516914419.

The spelling of 105657243 in words is "one hundred five million, six hundred fifty-seven thousand, two hundred forty-three".