100213406 has 4 divisors (see below), whose sum is σ = 150320112. Its totient is φ = 50106702.

The previous prime is 100213363. The next prime is 100213409. The reversal of 100213406 is 604312001.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100213409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25053350 + ... + 25053353.

It is an arithmetic number, because the mean of its divisors is an integer number (37580028).

Almost surely, 2^100213406 is an apocalyptic number.

100213406 is a deficient number, since it is larger than the sum of its proper divisors (50106706).

100213406 is an equidigital number, since it uses as much as digits as its factorization.

100213406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50106705.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 100213406 is about 10010.6646133012. The cubic root of 100213406 is about 464.4888297329.

Adding to 100213406 its reverse (604312001), we get a palindrome (704525407).

The spelling of 100213406 in words is "one hundred million, two hundred thirteen thousand, four hundred six".