103640211 has 12 divisors (see below), whose sum is σ = 158508792. Its totient is φ = 65029056.

The previous prime is 103640197. The next prime is 103640213. The reversal of 103640211 is 112046301.

It is a happy number.

103640211 is a `hidden beast` number, since 1 + 0 + 3 + 640 + 21 + 1 = 666.

It is not a de Polignac number, because 103640211 - 2⁷ = 103640083 is a prime.

It is a super-3 number, since 3×103640211³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (103640213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 338541 + ... + 338846.

It is an arithmetic number, because the mean of its divisors is an integer number (13209066).

Almost surely, 2^103640211 is an apocalyptic number.

103640211 is a deficient number, since it is larger than the sum of its proper divisors (54868581).

103640211 is a wasteful number, since it uses less digits than its factorization.

103640211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677410 (or 677407 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 103640211 is about 10180.3836371720. The cubic root of 103640211 is about 469.7240133141.

Adding to 103640211 its reverse (112046301), we get a palindrome (215686512).

The spelling of 103640211 in words is "one hundred three million, six hundred forty thousand, two hundred eleven".