1312026 has 32 divisors (see below), whose sum is σ = 2928960. Its totient is φ = 389376.
The previous prime is 1312019. The next prime is 1312027. The reversal of 1312026 is 6202131.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 1311996 and 1312014.
It is not an unprimeable number, because it can be changed into a prime (1312027) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1600 + ... + 2276.
It is an arithmetic number, because the mean of its divisors is an integer number (91530).
21312026 is an apocalyptic number.
1312026 is an abundant number, since it is smaller than the sum of its proper divisors (1616934).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1312026 is a wasteful number, since it uses less digits than its factorization.
1312026 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 718.
The product of its (nonzero) digits is 72, while the sum is 15.
The square root of 1312026 is about 1145.4370344982. The cubic root of 1312026 is about 109.4747966431.
Adding to 1312026 its reverse (6202131), we get a palindrome (7514157).
The spelling of 1312026 in words is "one million, three hundred twelve thousand, twenty-six".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.064 sec. • engine limits •