105542231 has 2 divisors, whose sum is σ = 105542232. Its totient is φ = 105542230.

The previous prime is 105542221. The next prime is 105542233. The reversal of 105542231 is 132245501.

It is a strong prime.

It is an emirp because it is prime and its reverse (132245501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 105542231 - 2¹⁰ = 105541207 is a prime.

It is a super-2 number, since 2×105542231² = 22278325048914722, which contains 22 as substring.

Together with 105542233, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 105542197 and 105542206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105542233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52771115 + 52771116.

It is an arithmetic number, because the mean of its divisors is an integer number (52771116).

Almost surely, 2^105542231 is an apocalyptic number.

105542231 is a deficient number, since it is larger than the sum of its proper divisors (1).

105542231 is an equidigital number, since it uses as much as digits as its factorization.

105542231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 105542231 is about 10273.3748593147. The cubic root of 105542231 is about 472.5800929894.

Adding to 105542231 its reverse (132245501), we get a palindrome (237787732).

The spelling of 105542231 in words is "one hundred five million, five hundred forty-two thousand, two hundred thirty-one".