105272051 has 4 divisors (see below), whose sum is σ = 107839704. Its totient is φ = 102704400.

The previous prime is 105272047. The next prime is 105272053. The reversal of 105272051 is 150272501.

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 105272051 - 2² = 105272047 is a prime.

It is a super-2 number, since 2×105272051² = 22164409443493202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105272053) 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, 1283765 + ... + 1283846.

It is an arithmetic number, because the mean of its divisors is an integer number (26959926).

Almost surely, 2^105272051 is an apocalyptic number.

105272051 is a deficient number, since it is larger than the sum of its proper divisors (2567653).

105272051 is an equidigital number, since it uses as much as digits as its factorization.

105272051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2567652.

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

The square root of 105272051 is about 10260.2169080385. The cubic root of 105272051 is about 472.1764921581.

The spelling of 105272051 in words is "one hundred five million, two hundred seventy-two thousand, fifty-one".