105739321 has 2 divisors, whose sum is σ = 105739322. Its totient is φ = 105739320.

The previous prime is 105739301. The next prime is 105739373. The reversal of 105739321 is 123937501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104857600 + 881721 = 10240^2 + 939^2 .

It is a cyclic number.

It is not a de Polignac number, because 105739321 - 2¹¹ = 105737273 is a prime.

It is a super-2 number, since 2×105739321² = 22361608011082082, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (105739301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52869660 + 52869661.

It is an arithmetic number, because the mean of its divisors is an integer number (52869661).

Almost surely, 2^105739321 is an apocalyptic number.

It is an amenable number.

105739321 is a deficient number, since it is larger than the sum of its proper divisors (1).

105739321 is an equidigital number, since it uses as much as digits as its factorization.

105739321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 105739321 is about 10282.9626567444. The cubic root of 105739321 is about 472.8740760789.

The spelling of 105739321 in words is "one hundred five million, seven hundred thirty-nine thousand, three hundred twenty-one".