105442251 has 8 divisors (see below), whose sum is σ = 140968080. Its totient is φ = 70105632.

The previous prime is 105442247. The next prime is 105442301. The reversal of 105442251 is 152244501.

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

It is not a de Polignac number, because 105442251 - 2² = 105442247 is a prime.

It is a super-2 number, since 2×105442251² = 22236136591894002, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105442241) 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, 45996 + ... + 48233.

It is an arithmetic number, because the mean of its divisors is an integer number (17621010).

Almost surely, 2^105442251 is an apocalyptic number.

105442251 is a deficient number, since it is larger than the sum of its proper divisors (35525829).

105442251 is an equidigital number, since it uses as much as digits as its factorization.

105442251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94605.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 105442251 is about 10268.5077299479. The cubic root of 105442251 is about 472.4308210357.

Adding to 105442251 its reverse (152244501), we get a palindrome (257686752).

The spelling of 105442251 in words is "one hundred five million, four hundred forty-two thousand, two hundred fifty-one".