105120272 has 20 divisors (see below), whose sum is σ = 204059856. Its totient is φ = 52459680.

The previous prime is 105120259. The next prime is 105120277. The reversal of 105120272 is 272021501.

It is a super-2 number, since 2×105120272² = 22100543170707968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105120277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2747 + ... + 14757.

Almost surely, 2^105120272 is an apocalyptic number.

It is an amenable number.

105120272 is a deficient number, since it is larger than the sum of its proper divisors (98939584).

105120272 is a wasteful number, since it uses less digits than its factorization.

105120272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12566 (or 12560 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 105120272 is about 10252.8177590358. The cubic root of 105120272 is about 471.9494583438.

Adding to 105120272 its reverse (272021501), we get a palindrome (377141773).

The spelling of 105120272 in words is "one hundred five million, one hundred twenty thousand, two hundred seventy-two".