105240255 has 8 divisors (see below), whose sum is σ = 168384432. Its totient is φ = 56128128.

The previous prime is 105240253. The next prime is 105240269. The reversal of 105240255 is 552042501.

It is a happy number.

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

It is not a de Polignac number, because 105240255 - 2¹ = 105240253 is a prime.

It is a super-2 number, since 2×105240255² = 22151022544930050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105240253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3507994 + ... + 3508023.

It is an arithmetic number, because the mean of its divisors is an integer number (21048054).

Almost surely, 2^105240255 is an apocalyptic number.

105240255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

105240255 is a deficient number, since it is larger than the sum of its proper divisors (63144177).

105240255 is an equidigital number, since it uses as much as digits as its factorization.

105240255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7016025.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 105240255 is about 10258.6673111082. The cubic root of 105240255 is about 472.1289491956.

Adding to 105240255 its reverse (552042501), we get a palindrome (657282756).

The spelling of 105240255 in words is "one hundred five million, two hundred forty thousand, two hundred fifty-five".