105891229 has 2 divisors, whose sum is σ = 105891230. Its totient is φ = 105891228.

The previous prime is 105891223. The next prime is 105891259. The reversal of 105891229 is 922198501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61308900 + 44582329 = 7830^2 + 6677^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105891229 is a prime.

It is a super-2 number, since 2×105891229² = 22425904758260882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105891223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52945614 + 52945615.

It is an arithmetic number, because the mean of its divisors is an integer number (52945615).

Almost surely, 2^105891229 is an apocalyptic number.

It is an amenable number.

105891229 is a deficient number, since it is larger than the sum of its proper divisors (1).

105891229 is an equidigital number, since it uses as much as digits as its factorization.

105891229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 37.

The square root of 105891229 is about 10290.3463984455. The cubic root of 105891229 is about 473.1004156677.

The spelling of 105891229 in words is "one hundred five million, eight hundred ninety-one thousand, two hundred twenty-nine".