105679049 has 4 divisors (see below), whose sum is σ = 120776064. Its totient is φ = 90582036.

The previous prime is 105679037. The next prime is 105679073. The reversal of 105679049 is 940976501.

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: 940976501 = 19 ⋅49525079.

It is a cyclic number.

It is not a de Polignac number, because 105679049 - 2¹² = 105674953 is a prime.

It is a super-2 number, since 2×105679049² = 22336122795088802, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 105678997 and 105679015.

It is not an unprimeable number, because it can be changed into a prime (105679649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7548497 + ... + 7548510.

It is an arithmetic number, because the mean of its divisors is an integer number (30194016).

Almost surely, 2^105679049 is an apocalyptic number.

It is an amenable number.

105679049 is a deficient number, since it is larger than the sum of its proper divisors (15097015).

105679049 is an equidigital number, since it uses as much as digits as its factorization.

105679049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15097014.

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 105679049 is about 10280.0315660994. The cubic root of 105679049 is about 472.7842120528.

The spelling of 105679049 in words is "one hundred five million, six hundred seventy-nine thousand, forty-nine".