105065720 has 16 divisors (see below), whose sum is σ = 236397960. Its totient is φ = 42026272.

The previous prime is 105065717. The next prime is 105065743. The reversal of 105065720 is 27560501.

It is a super-2 number, since 2×105065720² = 22077611038236800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105065720.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1313282 + ... + 1313361.

Almost surely, 2^105065720 is an apocalyptic number.

105065720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

105065720 is an abundant number, since it is smaller than the sum of its proper divisors (131332240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105065720 is a wasteful number, since it uses less digits than its factorization.

105065720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2626654 (or 2626650 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 105065720 is about 10250.1570719672. The cubic root of 105065720 is about 471.8678050743.

The spelling of 105065720 in words is "one hundred five million, sixty-five thousand, seven hundred twenty".