105211253 has 4 divisors (see below), whose sum is σ = 120241440. Its totient is φ = 90181068.

The previous prime is 105211247. The next prime is 105211273. The reversal of 105211253 is 352112501.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 105211253 - 2⁴ = 105211237 is a prime.

It is a super-2 number, since 2×105211253² = 22138815515660018, 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 (105211243) 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, 7515083 + ... + 7515096.

It is an arithmetic number, because the mean of its divisors is an integer number (30060360).

Almost surely, 2^105211253 is an apocalyptic number.

It is an amenable number.

105211253 is a deficient number, since it is larger than the sum of its proper divisors (15030187).

105211253 is an equidigital number, since it uses as much as digits as its factorization.

105211253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15030186.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 105211253 is about 10257.2536772764. The cubic root of 105211253 is about 472.0855756095.

Adding to 105211253 its reverse (352112501), we get a palindrome (457323754).

The spelling of 105211253 in words is "one hundred five million, two hundred eleven thousand, two hundred fifty-three".