105461021 has 2 divisors, whose sum is σ = 105461022. Its totient is φ = 105461020.

The previous prime is 105460991. The next prime is 105461051. The reversal of 105461021 is 120164501.

It is a balanced prime because it is at equal distance from previous prime (105460991) and next prime (105461051).

It can be written as a sum of positive squares in only one way, i.e., 87703225 + 17757796 = 9365^2 + 4214^2 .

It is an emirp because it is prime and its reverse (120164501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 105461021 - 2¹⁴ = 105444637 is a prime.

It is a super-2 number, since 2×105461021² = 22244053900724882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105460984 and 105461002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105461051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52730510 + 52730511.

It is an arithmetic number, because the mean of its divisors is an integer number (52730511).

Almost surely, 2^105461021 is an apocalyptic number.

It is an amenable number.

105461021 is a deficient number, since it is larger than the sum of its proper divisors (1).

105461021 is an equidigital number, since it uses as much as digits as its factorization.

105461021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 105461021 is about 10269.4216487590. The cubic root of 105461021 is about 472.4588521785.

The spelling of 105461021 in words is "one hundred five million, four hundred sixty-one thousand, twenty-one".