102243505 has 16 divisors (see below), whose sum is σ = 151006464. Its totient is φ = 64716480.

The previous prime is 102243499. The next prime is 102243517. The reversal of 102243505 is 505342201.

It is not a de Polignac number, because 102243505 - 2³ = 102243497 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111901 + ... + 112810.

It is an arithmetic number, because the mean of its divisors is an integer number (9437904).

Almost surely, 2^102243505 is an apocalyptic number.

It is an amenable number.

102243505 is a deficient number, since it is larger than the sum of its proper divisors (48762959).

102243505 is a wasteful number, since it uses less digits than its factorization.

102243505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224736.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 102243505 is about 10111.5530458975. The cubic root of 102243505 is about 467.6043863102.

Adding to 102243505 its reverse (505342201), we get a palindrome (607585706).

The spelling of 102243505 in words is "one hundred two million, two hundred forty-three thousand, five hundred five".