105272187 has 8 divisors (see below), whose sum is σ = 144890880. Its totient is φ = 67917480.

The previous prime is 105272183. The next prime is 105272207. The reversal of 105272187 is 781272501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 105272187 - 2² = 105272183 is a prime.

It is a super-2 number, since 2×105272187² = 22164466711525938, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (105272183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 565887 + ... + 566072.

It is an arithmetic number, because the mean of its divisors is an integer number (18111360).

Almost surely, 2^105272187 is an apocalyptic number.

105272187 is a deficient number, since it is larger than the sum of its proper divisors (39618693).

105272187 is a wasteful number, since it uses less digits than its factorization.

105272187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1131993.

The product of its (nonzero) digits is 7840, while the sum is 33.

The square root of 105272187 is about 10260.2235355766. The cubic root of 105272187 is about 472.1766954915.

The spelling of 105272187 in words is "one hundred five million, two hundred seventy-two thousand, one hundred eighty-seven".