105623087 has 2 divisors, whose sum is σ = 105623088. Its totient is φ = 105623086.

The previous prime is 105623083. The next prime is 105623113. The reversal of 105623087 is 780326501.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (780326501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 105623087 - 2² = 105623083 is a prime.

It is a super-2 number, since 2×105623087² = 22312473014819138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105623081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52811543 + 52811544.

It is an arithmetic number, because the mean of its divisors is an integer number (52811544).

Almost surely, 2^105623087 is an apocalyptic number.

105623087 is a deficient number, since it is larger than the sum of its proper divisors (1).

105623087 is an equidigital number, since it uses as much as digits as its factorization.

105623087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 105623087 is about 10277.3093268618. The cubic root of 105623087 is about 472.7007435321.

Adding to 105623087 its reverse (780326501), we get a palindrome (885949588).

The spelling of 105623087 in words is "one hundred five million, six hundred twenty-three thousand, eighty-seven".