1213102 has 16 divisors (see below), whose sum is σ = 2017152. Its totient is φ = 542520.
The previous prime is 1213097. The next prime is 1213109. The reversal of 1213102 is 2013121.
It is an Ulam number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1213109) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1063 + ... + 1885.
It is an arithmetic number, because the mean of its divisors is an integer number (126072).
21213102 is an apocalyptic number.
1213102 is a deficient number, since it is larger than the sum of its proper divisors (804050).
1213102 is a wasteful number, since it uses less digits than its factorization.
1213102 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 903.
The product of its (nonzero) digits is 12, while the sum is 10.
The square root of 1213102 is about 1101.4090974747. The cubic root of 1213102 is about 106.6512065267.
Adding to 1213102 its reverse (2013121), we get a palindrome (3226223).
It can be divided in two parts, 121 and 3102, that added together give a palindrome (3223).
The spelling of 1213102 in words is "one million, two hundred thirteen thousand, one hundred two".
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