1198023 has 16 divisors (see below), whose sum is σ = 1685376. Its totient is φ = 756000.
The previous prime is 1198013. The next prime is 1198033. The reversal of 1198023 is 3208911.
It is an interprime number because it is at equal distance from previous prime (1198013) and next prime (1198033).
It is not a de Polignac number, because 1198023 - 28 = 1197767 is a prime.
1198023 is a lucky number.
It is a junction number, because it is equal to n+sod(n) for n = 1197984 and 1198002.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1198013) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4648 + ... + 4898.
It is an arithmetic number, because the mean of its divisors is an integer number (105336).
21198023 is an apocalyptic number.
1198023 is a deficient number, since it is larger than the sum of its proper divisors (487353).
1198023 is a wasteful number, since it uses less digits than its factorization.
1198023 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 334.
The product of its (nonzero) digits is 432, while the sum is 24.
The square root of 1198023 is about 1094.5423701255. The cubic root of 1198023 is about 106.2074671744.
It can be divided in two parts, 119802 and 3, that added together give a triangular number (119805 = T489).
The spelling of 1198023 in words is "one million, one hundred ninety-eight thousand, twenty-three".
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