105822391 has 2 divisors, whose sum is σ = 105822392. Its totient is φ = 105822390.

The previous prime is 105822361. The next prime is 105822401. The reversal of 105822391 is 193228501.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 105822391 - 2⁵ = 105822359 is a prime.

It is a super-2 number, since 2×105822391² = 22396756873913762, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105822361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52911195 + 52911196.

It is an arithmetic number, because the mean of its divisors is an integer number (52911196).

Almost surely, 2^105822391 is an apocalyptic number.

105822391 is a deficient number, since it is larger than the sum of its proper divisors (1).

105822391 is an equidigital number, since it uses as much as digits as its factorization.

105822391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 105822391 is about 10287.0010693107. The cubic root of 105822391 is about 472.9978753963.

The spelling of 105822391 in words is "one hundred five million, eight hundred twenty-two thousand, three hundred ninety-one".