1213115 has 8 divisors (see below), whose sum is σ = 1462128. Its totient is φ = 966240.
The previous prime is 1213109. The next prime is 1213129. The reversal of 1213115 is 5113121.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 1213115 - 214 = 1196731 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 1213115.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1289 + ... + 2021.
It is an arithmetic number, because the mean of its divisors is an integer number (182766).
21213115 is an apocalyptic number.
1213115 is a deficient number, since it is larger than the sum of its proper divisors (249013).
1213115 is an equidigital number, since it uses as much as digits as its factorization.
1213115 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1069.
The product of its digits is 30, while the sum is 14.
The square root of 1213115 is about 1101.4149989899. The cubic root of 1213115 is about 106.6515874951.
Adding to 1213115 its reverse (5113121), we get a palindrome (6326236).
The spelling of 1213115 in words is "one million, two hundred thirteen thousand, one hundred fifteen".
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