105422987 has 2 divisors, whose sum is σ = 105422988. Its totient is φ = 105422986.

The previous prime is 105422981. The next prime is 105423037. The reversal of 105422987 is 789224501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 105422987 - 2⁶ = 105422923 is a prime.

It is a super-2 number, since 2×105422987² = 22228012376004338, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105422987.

It is not a weakly prime, because it can be changed into another prime (105422981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52711493 + 52711494.

It is an arithmetic number, because the mean of its divisors is an integer number (52711494).

Almost surely, 2^105422987 is an apocalyptic number.

105422987 is a deficient number, since it is larger than the sum of its proper divisors (1).

105422987 is an equidigital number, since it uses as much as digits as its factorization.

105422987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 105422987 is about 10267.5696734914. The cubic root of 105422987 is about 472.4020486934.

The spelling of 105422987 in words is "one hundred five million, four hundred twenty-two thousand, nine hundred eighty-seven".