105268649 has 8 divisors (see below), whose sum is σ = 106828800. Its totient is φ = 103720176.

The previous prime is 105268627. The next prime is 105268661. The reversal of 105268649 is 946862501.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 105268649 - 2¹² = 105264553 is a prime.

It is a super-2 number, since 2×105268649² = 22162976924570402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105268609) 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, 16142 + ... + 21704.

It is an arithmetic number, because the mean of its divisors is an integer number (13353600).

Almost surely, 2^105268649 is an apocalyptic number.

It is an amenable number.

105268649 is a deficient number, since it is larger than the sum of its proper divisors (1560151).

105268649 is a wasteful number, since it uses less digits than its factorization.

105268649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5839.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 105268649 is about 10260.0511207303. The cubic root of 105268649 is about 472.1714057757.

The spelling of 105268649 in words is "one hundred five million, two hundred sixty-eight thousand, six hundred forty-nine".