1292131 has 2 divisors, whose sum is σ = 1292132. Its totient is φ = 1292130.
The previous prime is 1292113. The next prime is 1292141. The reversal of 1292131 is 1312921.
Together with previous prime (1292113) it forms an Ormiston pair, because they use the same digits, order apart.
It is a strong prime.
It is an emirp because it is prime and its reverse (1312921) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 1292131 - 25 = 1292099 is a prime.
It is a super-2 number, since 2×12921312 = 3339205042322, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 1292099 and 1292108.
It is not a weakly prime, because it can be changed into another prime (1292141) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 646065 + 646066.
It is an arithmetic number, because the mean of its divisors is an integer number (646066).
21292131 is an apocalyptic number.
1292131 is a deficient number, since it is larger than the sum of its proper divisors (1).
1292131 is an equidigital number, since it uses as much as digits as its factorization.
1292131 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 108, while the sum is 19.
The square root of 1292131 is about 1136.7194024912. The cubic root of 1292131 is about 108.9186329884.
The spelling of 1292131 in words is "one million, two hundred ninety-two thousand, one hundred thirty-one".
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