105211273 has 2 divisors, whose sum is σ = 105211274. Its totient is φ = 105211272.

The previous prime is 105211247. The next prime is 105211277. The reversal of 105211273 is 372112501.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103489929 + 1721344 = 10173^2 + 1312^2 .

It is an emirp because it is prime and its reverse (372112501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 105211273 - 2⁹ = 105210761 is a prime.

It is a super-2 number, since 2×105211273² = 22138823932561058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (105211277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52605636 + 52605637.

It is an arithmetic number, because the mean of its divisors is an integer number (52605637).

Almost surely, 2^105211273 is an apocalyptic number.

It is an amenable number.

105211273 is a deficient number, since it is larger than the sum of its proper divisors (1).

105211273 is an equidigital number, since it uses as much as digits as its factorization.

105211273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 105211273 is about 10257.2546521962. The cubic root of 105211273 is about 472.0856055230.

Adding to 105211273 its reverse (372112501), we get a palindrome (477323774).

The spelling of 105211273 in words is "one hundred five million, two hundred eleven thousand, two hundred seventy-three".