105720272 has 20 divisors (see below), whose sum is σ = 234095136. Its totient is φ = 45308640.

The previous prime is 105720269. The next prime is 105720287. The reversal of 105720272 is 272027501.

It is a super-2 number, since 2×105720272² = 22353551823507968, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 471854 + ... + 472077.

Almost surely, 2^105720272 is an apocalyptic number.

It is an amenable number.

105720272 is an abundant number, since it is smaller than the sum of its proper divisors (128374864).

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

105720272 is an equidigital number, since it uses as much as digits as its factorization.

105720272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943946 (or 943940 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 26.

The square root of 105720272 is about 10282.0363741819. The cubic root of 105720272 is about 472.8456781938.

Adding to 105720272 its reverse (272027501), we get a palindrome (377747773).

The spelling of 105720272 in words is "one hundred five million, seven hundred twenty thousand, two hundred seventy-two".