105125291 has 2 divisors, whose sum is σ = 105125292. Its totient is φ = 105125290.

The previous prime is 105125257. The next prime is 105125299. The reversal of 105125291 is 192521501.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 105125291 - 2¹⁰ = 105124267 is a prime.

It is a super-2 number, since 2×105125291² = 22102653615669362, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105125291.

It is not a weakly prime, because it can be changed into another prime (105125299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52562645 + 52562646.

It is an arithmetic number, because the mean of its divisors is an integer number (52562646).

Almost surely, 2^105125291 is an apocalyptic number.

105125291 is a deficient number, since it is larger than the sum of its proper divisors (1).

105125291 is an equidigital number, since it uses as much as digits as its factorization.

105125291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 26.

The square root of 105125291 is about 10253.0625180967. The cubic root of 105125291 is about 471.9569693487.

Adding to 105125291 its reverse (192521501), we get a palindrome (297646792).

The spelling of 105125291 in words is "one hundred five million, one hundred twenty-five thousand, two hundred ninety-one".