105901321 has 2 divisors, whose sum is σ = 105901322. Its totient is φ = 105901320.

The previous prime is 105901309. The next prime is 105901331. The reversal of 105901321 is 123109501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84640000 + 21261321 = 9200^2 + 4611^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105901321 is a prime.

It is a super-2 number, since 2×105901321² = 22430179579090082, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105901292 and 105901301.

It is not a weakly prime, because it can be changed into another prime (105901331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52950660 + 52950661.

It is an arithmetic number, because the mean of its divisors is an integer number (52950661).

Almost surely, 2^105901321 is an apocalyptic number.

It is an amenable number.

105901321 is a deficient number, since it is larger than the sum of its proper divisors (1).

105901321 is an equidigital number, since it uses as much as digits as its factorization.

105901321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270, while the sum is 22.

The square root of 105901321 is about 10290.8367492639. The cubic root of 105901321 is about 473.1154448562.

It can be divided in two parts, 10590 and 1321, that added together give a palindrome (11911).

The spelling of 105901321 in words is "one hundred five million, nine hundred one thousand, three hundred twenty-one".