102440211 has 8 divisors (see below), whose sum is σ = 136899840. Its totient is φ = 68137032.

The previous prime is 102440207. The next prime is 102440227. The reversal of 102440211 is 112044201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 102440211 - 2² = 102440207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102440201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37575 + ... + 40208.

It is an arithmetic number, because the mean of its divisors is an integer number (17112480).

Almost surely, 2^102440211 is an apocalyptic number.

102440211 is a deficient number, since it is larger than the sum of its proper divisors (34459629).

102440211 is an equidigital number, since it uses as much as digits as its factorization.

102440211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78225.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 102440211 is about 10121.2751666971. The cubic root of 102440211 is about 467.9040684736.

Adding to 102440211 its reverse (112044201), we get a palindrome (214484412).

The spelling of 102440211 in words is "one hundred two million, four hundred forty thousand, two hundred eleven".