105272015 has 4 divisors (see below), whose sum is σ = 126326424. Its totient is φ = 84217608.

The previous prime is 105272009. The next prime is 105272017. The reversal of 105272015 is 510272501.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 105272015 - 2¹² = 105267919 is a prime.

It is a super-2 number, since 2×105272015² = 22164394284320450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105272017) 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, 10527197 + ... + 10527206.

It is an arithmetic number, because the mean of its divisors is an integer number (31581606).

Almost surely, 2^105272015 is an apocalyptic number.

105272015 is a deficient number, since it is larger than the sum of its proper divisors (21054409).

105272015 is an equidigital number, since it uses as much as digits as its factorization.

105272015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21054408.

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 105272015 is about 10260.2151536895. The cubic root of 105272015 is about 472.1764383345.

The spelling of 105272015 in words is "one hundred five million, two hundred seventy-two thousand, fifteen".