105720501 has 16 divisors (see below), whose sum is σ = 149465088. Its totient is φ = 66240000.

The previous prime is 105720499. The next prime is 105720521. The reversal of 105720501 is 105027501.

It is not a de Polignac number, because 105720501 - 2¹ = 105720499 is a prime.

It is a super-2 number, since 2×105720501² = 22353648663382002, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105720521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57801 + ... + 59601.

It is an arithmetic number, because the mean of its divisors is an integer number (9341568).

Almost surely, 2^105720501 is an apocalyptic number.

It is an amenable number.

105720501 is a deficient number, since it is larger than the sum of its proper divisors (43744587).

105720501 is a wasteful number, since it uses less digits than its factorization.

105720501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2972.

The product of its (nonzero) digits is 350, while the sum is 21.

The square root of 105720501 is about 10282.0475101023. The cubic root of 105720501 is about 472.8460196029.

The spelling of 105720501 in words is "one hundred five million, seven hundred twenty thousand, five hundred one".