105816631 has 2 divisors, whose sum is σ = 105816632. Its totient is φ = 105816630.

The previous prime is 105816611. The next prime is 105816701. The reversal of 105816631 is 136618501.

It is a weak prime.

It is an emirp because it is prime and its reverse (136618501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 105816631 - 2²¹ = 103719479 is a prime.

It is a super-2 number, since 2×105816631² = 22394318792380322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105816593 and 105816602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105816611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52908315 + 52908316.

It is an arithmetic number, because the mean of its divisors is an integer number (52908316).

Almost surely, 2^105816631 is an apocalyptic number.

105816631 is a deficient number, since it is larger than the sum of its proper divisors (1).

105816631 is an equidigital number, since it uses as much as digits as its factorization.

105816631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 105816631 is about 10286.7211005257. The cubic root of 105816631 is about 472.9892933524.

It can be divided in two parts, 1058 and 16631, that added together give a square (17689 = 133²).

The spelling of 105816631 in words is "one hundred five million, eight hundred sixteen thousand, six hundred thirty-one".