105036391 has 2 divisors, whose sum is σ = 105036392. Its totient is φ = 105036390.

The previous prime is 105036367. The next prime is 105036403. The reversal of 105036391 is 193630501.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 105036391 - 2¹¹ = 105034343 is a prime.

It is a super-2 number, since 2×105036391² = 22065286868609762, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105036361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52518195 + 52518196.

It is an arithmetic number, because the mean of its divisors is an integer number (52518196).

Almost surely, 2^105036391 is an apocalyptic number.

105036391 is a deficient number, since it is larger than the sum of its proper divisors (1).

105036391 is an equidigital number, since it uses as much as digits as its factorization.

105036391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2430, while the sum is 28.

The square root of 105036391 is about 10248.7263111081. The cubic root of 105036391 is about 471.8238938322.

Adding to 105036391 its reverse (193630501), we get a palindrome (298666892).

The spelling of 105036391 in words is "one hundred five million, thirty-six thousand, three hundred ninety-one".