105586421 has 2 divisors, whose sum is σ = 105586422. Its totient is φ = 105586420.

The previous prime is 105586417. The next prime is 105586469. The reversal of 105586421 is 124685501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73788100 + 31798321 = 8590^2 + 5639^2 .

It is a cyclic number.

It is not a de Polignac number, because 105586421 - 2² = 105586417 is a prime.

It is a super-2 number, since 2×105586421² = 22296984599178482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105586471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52793210 + 52793211.

It is an arithmetic number, because the mean of its divisors is an integer number (52793211).

Almost surely, 2^105586421 is an apocalyptic number.

It is an amenable number.

105586421 is a deficient number, since it is larger than the sum of its proper divisors (1).

105586421 is an equidigital number, since it uses as much as digits as its factorization.

105586421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 105586421 is about 10275.5253393683. The cubic root of 105586421 is about 472.6460394205.

The spelling of 105586421 in words is "one hundred five million, five hundred eighty-six thousand, four hundred twenty-one".