105620231 has 2 divisors, whose sum is σ = 105620232. Its totient is φ = 105620230.

The previous prime is 105620227. The next prime is 105620243. The reversal of 105620231 is 132026501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 105620231 - 2² = 105620227 is a prime.

It is a super-2 number, since 2×105620231² = 22311266392986722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105620731) 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, 52810115 + 52810116.

It is an arithmetic number, because the mean of its divisors is an integer number (52810116).

Almost surely, 2^105620231 is an apocalyptic number.

105620231 is a deficient number, since it is larger than the sum of its proper divisors (1).

105620231 is an equidigital number, since it uses as much as digits as its factorization.

105620231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 105620231 is about 10277.1703790489. The cubic root of 105620231 is about 472.6964829563.

Adding to 105620231 its reverse (132026501), we get a palindrome (237646732).

The spelling of 105620231 in words is "one hundred five million, six hundred twenty thousand, two hundred thirty-one".