105720516 has 36 divisors (see below), whose sum is σ = 291533424. Its totient is φ = 32036400.

The previous prime is 105720499. The next prime is 105720521. The reversal of 105720516 is 615027501.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×105720516² = 22353655006612512, 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 105720516.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 133090 + ... + 133881.

Almost surely, 2^105720516 is an apocalyptic number.

It is an amenable number.

105720516 is an abundant number, since it is smaller than the sum of its proper divisors (185812908).

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

105720516 is a wasteful number, since it uses less digits than its factorization.

105720516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266992 (or 266987 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 105720516 is about 10282.0482395289. The cubic root of 105720516 is about 472.8460419659.

The spelling of 105720516 in words is "one hundred five million, seven hundred twenty thousand, five hundred sixteen".