102206623 has 4 divisors (see below), whose sum is σ = 104381280. Its totient is φ = 100031968.

The previous prime is 102206609. The next prime is 102206627. The reversal of 102206623 is 326602201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102206623 - 2¹⁷ = 102075551 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102206594 and 102206603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102206627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1087258 + ... + 1087351.

It is an arithmetic number, because the mean of its divisors is an integer number (26095320).

Almost surely, 2^102206623 is an apocalyptic number.

102206623 is a deficient number, since it is larger than the sum of its proper divisors (2174657).

102206623 is an equidigital number, since it uses as much as digits as its factorization.

102206623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2174656.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 102206623 is about 10109.7291259460. The cubic root of 102206623 is about 467.5481536947.

Adding to 102206623 its reverse (326602201), we get a palindrome (428808824).

The spelling of 102206623 in words is "one hundred two million, two hundred six thousand, six hundred twenty-three".